FTTH Planning using GIS

International Journal of Soft Computing and Engineering (IJSCE)
ISSN: 2231-2307, Volume-5 Issue-4, September 2015
118
Published By:
Blue Eyes Intelligence Engineering
& Sciences Publication Pvt. Ltd.
ABSTRACT—Passive Optical Networks (PON) technology
brings an evolution in the industry of Telecommunication for the
provisioning of High Speed Internet (HSI) and Triple Play
bundled Services that includes Voice, Data, and Video Streaming
throughout the world. In Pakistan most of the service providers
are offering broadband services on traditional copper OSP
(Outside Plant) network since 2000. Demand for the high speed
internet and broadband is increasing rapidly, it is desired with
great need to migrate from traditional copper based OSP network
to PON – FTTx (Fiber To The x) infrastructure. Considering the
geographical requirements in Pakistan a scalable fiber network is
required which can be optimized as per the user’s requirements
and demands with high speed bandwidth efficiency, involving the
minimum losses and with ideal capital expenditure (CAPEX). In
this work a platform for migration from copper to fiber access
network with a scalable and optimized PON – FTTx
infrastructure in green field and dry field areas of Pakistan have
been proposed using Geographic Information system (GIS). In
any developing country like Pakistan having the same cultural
and geographical topology, this platform can be used to migrate
from copper to fiber access network to provide the PON based
telecom services. The developed platform for migration from
copper to PON based fiber has been studied, planned, and then
simulated on a selected geographical area of Pakistan with
physical execution that showed better and efficient results with
reduction in capital and operational expenditures. A factual plan
without ambiguities assists the operators of Pakistan to
analyze/forecast bandwidth requirements of an area, optimized
network planning along with the in time and efficient
deployment.
Keywords—FTTx, GIS, HSI, OSP, PON
I. INTRODUCTION
In the modern era; demand of the high speed internet
(HSI) in the form of Multimedia Broadband (MM&BB)
services are growing rapidly in the world [1] that is
changing the human lifestyles [2] and the environs of their
surroundings due to the smooth and in time services
enabling. These rapid technical developments in Broadband
services connecting entities, societies, building awareness,
generating capital [3], supporting social media and creating
opportunities to bring change
Revised Version Manuscript Received on September 04, 2015.
Umar Farooq, MSTN, Iqra University, Khayaban-E-Johar, Islamabad,
Pakistan.
Dr. Khawaja Tauseef Tasneem, HOD, Department of Computer
Science, Iqra University, Islamabad, Pakistan
Dr. Sajid Bashir, Department of Computer Science, Iqra University,
Islamabad, Pakistan,
A. Saboor, Military College of Signals, National University of Sciences
and Technology, Rawalpindi, Pakistan.
A. Rauf, Military College of Signals, National University of Sciences and
Technology, Rawalpindi, Pakistan.
for betterment of humanity [1], [4]-[5], [6]-[9].Broadband is
now regarded as essential to a country’s infrastructure, to
business and overall competitiveness and is gradually
moving closer to being widely recognized as a human right
[10].
Key focus of the new era content providers is to digitize
the services and to create the rich online experience. There
are numerous technologies available in the world with
service providers who are competing fast rigorously to
provide high speed internet and multimedia broadband
services with quality installations.
The evolved technologies for the provisioning of
multimedia broadband (MM&BB) services have bounds
considering bandwidth, reliability, coverage, and cost [1],
[4]-[5], [9],[11].Therefore, the major issue to balance the
range of cost, coverage and quality [12] should be
formulated for the rapid growth and service provisioning of
multimedia broadband technologies epically for an average
citizen in developing country like Pakistan as per its cultural
and topographic variations. To stay competitive and to
satisfy bandwidth demand, telecom operators are
permanently improving their network infrastructure with
new technologies [6].
The trends of broadband technology in Pakistan are in
stark contrast compared to worldwide trends where wire-line
leads the broadband market. The pace of broadband growth
in wireline is very slow in Pakistan that is very much
obvious. The slow growth is due to some factors that need
improvement; these factors include [13]:
1) Low (level of) consumer awareness,
2) No coverage of Broadband services,
3) Traffic reduction in broadband services,
4) Low literacy rate,
5) Low local content development,
6) Low computer penetration,
7) Cost of service (Tariff),
Out of the mentioned factors the most important is the
coverage area and wire line infrastructure deployment
especially for Passive Optical Networks (PON). FiberOptic
(FO) is the latest and the most advanced mode of data
transmission having the huge bandwidth, interference free,
best signal security, fast upgradability, low cost, small size
and less weight etc. But at present the PON have a share of
only 0.4% in broadband services [9].
Passive Optical Network (PON) technology can be
exploited by planning and deployment in a variety of
topographic infrastructures which are mainly categorized as
FTTx (Fiber to the x) [6]-[7], [12],[14]-[15].
The service providers are facing problems for the
maintenance and monitoring of their wire-line networks i.e.
copper network, which needs the uplifting, continuous
Migration from Copper to Fiber Access Network
using Passive Optical Network for Green and Dry
Field Areas of Pakistan
Umar Farooq, Sajid Bashir, Tauseef Tasneem, A.Saboor, A.Rauf

Migration from Copper to Fiber Access Network using Passive Optical Network for Green and Dry Field
maintenance and rehabilitation to improve the
satisfaction index [9].
The penetration of the Passive Optical Network (PON) in
Access is very slow as compared to the increa
demand. In Pakistan no any integrated platform is available
that can be deployed as per topographic variations and
cultural diversity. This platform will offer:
Ease and time saving in Planning, Optimization and
Monitoring of PON
1) Low Capital Investment involvement
2) Futuristic
There is a big research work in the network migration
from copper to the fiber that has been published [1
[11]-17], [26-43]. The already researched work needs a lot
of tunings and modifications before deployme
Pakistan as stated in the problem statement earlier.
It is suggested to build a platform to Migrate from Copper
to Fiber Access Network using Passive Optical Network for
Green and Dry Field Areas of Pakistan. The platform is
proposed because more bandwidth requirement of the
subscribers and new customers due to bandwidth hungry
application like HDTV, Online gaming, video conferencing
etc. also most of the existing copper access network in
Pakistan is out aged especially bandwidth demand areas
urban and sub urban areas and bandwidth demand cannot be
fulfilled without deployment of PON FTTx access network
infrastructure. Major hurdle in copper access network is
distance limitation; the signal declines severely when it
reaches that limit for specific bit rate that results in increased
customer fault ratio [1], [4]-[5], [9], [16]. PON technology is
selected being futuristic technology as the access network
will be passive and no external power required to any
passive component, thus saving also energy resources [1
[16]-[17].
On selected geographic location ArcGIS is used for land
base digitization, using the same digitized base map the
physical survey will be carried out. Optical
Network will be planned and designed using ArcGIS
the validation of data collected during the field surveys.
Calculations for power budget and different analysis will be
done for Optical-Distribution Network (ODN) optimization
aided with simulations. Final optimized Optical
Network design will be deployed and the results taken by
simulated network will be compared with the final results
for further improvements if required. Upon the successful
execution and deployment the as built diagram will be
updated on GIS data for the future use and also for real time
monitoring upon integration of GIS system with GOPN
network elements.
II. FIBER BASED ACCESS NETWORK
Total transformation from copper to fiber is not feasible
in one go especially in Pakistan. The main reason is the
capital investment required for this purpose is very high [1
[4]-[5], [8]. The Fiber-Optic (FO) OSP includes
network: 1) Active-Optical Network (AON); 2) Pass
Optical Networks (PON). Fig.1 presents the both PON and
AON access networks.
The Active-Optical Networks, the primary copper cables
are replaced in steps by introducing active elements in field
[1], [4]-[5], [8]. The distribution cabinet in the access local
Areas of Pakistan
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maintenance and rehabilitation to improve the customer
The penetration of the Passive Optical Network (PON) in
Access is very slow as compared to the increased bandwidth
In Pakistan no any integrated platform is available
that can be deployed as per topographic variations and
cultural diversity. This platform will offer:
Planning, Optimization and
Investment involvement
There is a big research work in the network migration
published [1], [4]-[8],
The already researched work needs a lot
of tunings and modifications before deployment the same in
Pakistan as stated in the problem statement earlier.
It is suggested to build a platform to Migrate from Copper
to Fiber Access Network using Passive Optical Network for
Green and Dry Field Areas of Pakistan. The platform is
more bandwidth requirement of the
subscribers and new customers due to bandwidth hungry
application like HDTV, Online gaming, video conferencing
etc. also most of the existing copper access network in
Pakistan is out aged especially bandwidth demand areas i.e.
urban and sub urban areas and bandwidth demand cannot be
fulfilled without deployment of PON FTTx access network
infrastructure. Major hurdle in copper access network is
distance limitation; the signal declines severely when it
specific bit rate that results in increased
]. PON technology is
selected being futuristic technology as the access network
will be passive and no external power required to any
o energy resources [1],
On selected geographic location ArcGIS is used for land
base digitization, using the same digitized base map the
physical survey will be carried out. Optical-Distribution
Network will be planned and designed using ArcGIS upon
the validation of data collected during the field surveys.
Calculations for power budget and different analysis will be
Distribution Network (ODN) optimization
aided with simulations. Final optimized Optical-Distribution
gn will be deployed and the results taken by
simulated network will be compared with the final results
for further improvements if required. Upon the successful
execution and deployment the as built diagram will be
d also for real time
monitoring upon integration of GIS system with GOPN
ETWORK
Total transformation from copper to fiber is not feasible
in one go especially in Pakistan. The main reason is the
required for this purpose is very high [1],
includes two types of
Optical Network (AON); 2) Passive-
presents the both PON and
etworks, the primary copper cables
are replaced in steps by introducing active elements in field
The distribution cabinet in the access local
cable network of legacy copper based OSP is replaced with
the Optical-Network Units (ONUs). The
as intermediate nodes because both Fiber
and copper access network (secondary cables) are
terminated on it. These nodes convert the electrical signals
in to optical signals and transmit the subscriber traffic to the
respective switching Inside Plant (ISP) node using a
transmission node. This transmission node is SDH based.
ONUs are available in different sizes and comes in both
indoor and outdoor configuration
Fig.1 Active and Passive Optical Network [18
The other one is passive
uses point-to-multipoint fiber to the premises
unpowered optical splitters are used
deploying worldwide. The name passive depicts that there is
no available electrical source in OSP or no any active node
is required in the fiber access network for service
provisioning to the subscribers.
Currently, the major access network in Pakis
upon copper which is required to be transformed into Fiber
Optic (FO) access network. Fig.
fiber based OSP in which different category customers like
corporate, residential, enterprise and building etc. are
connected with access network using Fiber Optic (FO) s.
Fig.2 Fiber based Outside Plant (OSP)
III. GIS FOR TELECOMMUNICATION
GIS is an information system that is used to input, store,
manipulate, retrieve, analyze and generate geographically
referenced data or geospatial data, take in decision making
for planning and management of telecommunication, natural
resources, land use, urban services and facilities,
transportation, environment and other related administrative
records.
cable network of legacy copper based OSP is replaced with
Network Units (ONUs). These ONUs are used
as intermediate nodes because both Fiber-Optic (FO) cables
and copper access network (secondary cables) are
terminated on it. These nodes convert the electrical signals
in to optical signals and transmit the subscriber traffic to the
ctive switching Inside Plant (ISP) node using a
transmission node. This transmission node is SDH based.
ONUs are available in different sizes and comes in both
indoor and outdoor configuration [1], [4]-[5], [8].
and Passive Optical Network [18]
The other one is passive optical network (PON)
fiber to the premises in which
are used [18]and are widely
deploying worldwide. The name passive depicts that there is
no available electrical source in OSP or no any active node
is required in the fiber access network for service
.
access network in Pakistan is based
is required to be transformed into Fiber
Optic (FO) access network. Fig.2 showing a typical optic
fiber based OSP in which different category customers like
corporate, residential, enterprise and building etc. are
access network using Fiber Optic (FO) s.
Fiber based Outside Plant (OSP)
ELECOMMUNICATION
GIS is an information system that is used to input, store,
manipulate, retrieve, analyze and generate geographically-
referenced data or geospatial data, take in decision making
for planning and management of telecommunication, natural
urban services and facilities,
transportation, environment and other related administrative

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A. GIS Structure
GIS structure is based on layer type, which is integrated
all together to get the desired data. Out of these layers Base
Map is most critical and the important requirement of the
GIS.
Fig.3 GIS Structure
B. Base Map Preparation
In GIS the creation of base map is the basic requirement
to overlay any other data on it. This means before planning
and design Fiber Out-side plant using GIS we have to
prepare the base map of that specific area. After the creation
of base maps all of the fiber related layers will be created
and used for access network planning and designing with
reference to that base map.
ArcGIS is the well-known GIS application used to create,
manipulates, analysis and output creation of data and
information. ArcGIS latest version 10.2 is released and
available in the market.
C. Geo Referencing
Before going to start the digitization of Base Map, some
basic inputs are mandatory that includes:
An image of the site map as .tif, or .png or .jpeg file
Or a rich satellite image
Map or image is Georeferenced at first step
Google Earth
Arc Map 10.0 or latest
Geo-Referencing is the Pre digitization step, it means that
we need to make our data (shape file, imagery or map)
understand its geographic reference on earth; it’s just like
playing with puzzles. The steps are:
1) First to collect ground control points or (x, y) co-
ordinates and then assign these coordinates tothe site image
or map that is being georeferenced.
2) GPS can be used to collect the coordinates by physical
survey of the site, or can be picked up by using Google
Earth.
3) Picking the coordinates by using Google Earth is very
easy, just need to place mark for the corner or building of
the area for which you want to collect coordinates as shown
in Fig.4.
4) Geo-referencing .CAD (AutoCAD drawing), export the
CAD drawing to jpeg format by opening it in AutoCAD or
Arc GIS. After this the same process as above is used to
collect or assign coordinates for the selected ground control
points.
5) Geo-referencing a Map or Imagery, using the same
technique as of .CAD drawing; map should be in .tiff or
.jpeg format.
Fig.4 Taking (x, y) coordinates from Google Earth
6) Open Arc GIS application, from menu bar click
customized tab and select tool bar then select Geo-
referencing as shown in Fig.5
Fig.5 Geo-referencing in Arc Map, Step (1)
7) Add the JPEG image or satellite imagery in Arc Map,in
the beginning assign that image proper coordinate system
that will be available to all data sets of allied Telecom layers
and Land base feature class. It is recommended to import the
current geographic coordinate system or get the projection
from Arc catalog, WGS 1984 43N is used for Pakistan.
8) After this assign each point that is already selected as
ground control point to its individual geographic coordinates
taken from the Google Earth, for the this purpose first left
click on the corner or edge on the image and then right click
and click input x and y coordinate value as shown in Fig.6.
At minimum four points are needed for effective geo
referencing.
9) After assigning coordinates to all of four points click
update geo referencing, by doing so image will be
automatically rotated and moved to its original coordinated
location and is ready to be digitized.
10) Separate layers for the base map are created for
separate data set along with allied attribute info which
includes layers of zone or sub zone, water bodies, road,
parcel (polygon) shown in Fig.7.
Staff Related
Data
CMS/CRM Data
Cable Diagrams
Billing & Customer Care Data
Integrated Layers
Network Lifecycle
Management
Input Data
Base Map

Fig.6 Geo-referencing in Arc Map, Step (2)
Fig.7Digitized Roads, Parcels or polygon
Fig.8 Base Map
11) Fig.8 is final and ready product for survey, planning,
designing and optimizing, analyzing along with budget
calculation for GPON infrastructure. In a similar approach,
layers for GPON infrastructure will also be created that
includes PVC duct routes for Fiber Optic (FO) OSP,
Structure (for hand holes, manholes and JBs), and
equipment (for FDH, FAT and OLT etc.), Feeder cables and
Distribution cables or any other if required.
IV. PON ACCESS NETWORK DESIGNING
Fiber to the Home (FTTH) is network having end to end
fiber in access network that has become ultimate
requirement for any service provider in wire line business.
FTTH could be designed and deployed in two topologies:
Point-To Point (PTP) Network,
Areas of Pakistan
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referencing in Arc Map, Step (2)
Parcels or polygon
is final and ready product for survey, planning,
designing and optimizing, analyzing along with budget
calculation for GPON infrastructure. In a similar approach,
layers for GPON infrastructure will also be created that
Optic (FO) OSP,
Structure (for hand holes, manholes and JBs), and
equipment (for FDH, FAT and OLT etc.), Feeder cables and
Distribution cables or any other if required.
ESIGNING
Fiber to the Home (FTTH) is network having end to end
fiber in access network that has become ultimate
requirement for any service provider in wire line business.
FTTH could be designed and deployed in two topologies:
Point-To Multi Point (PTMP) Network.
In PTP a dedicated fiber for each tenant whereas PTMP
used the fiber sharing among a tenant group, typica
subscribers shown in Fig.9 (a) and (b).
Fig.9 PTP and PTMP Networks
In PTP network, there is an individual dedicated fiber
with a dedicated port of OLT for a single
ONT is directly connected to the OLT PON port, requires a
huge investment and not a good approach. It is suggested to
keep spare capacity in feeder and distribution cables to fulfil
such minute demands. However, in PTMP PON network the
optical reach is less than that of PTP PON structure that has
no splitters installed in it. A PON port could cover a distance
of 20 Km from the OLT to cover most of the area. PTP PON
networks should be deployed in the remote areas where
OLT placement is not economical but demand exists.
In PTMP PON access networks, PON port is shared
among the subscribers using the splitters. A single OLT
PON port could be shared between 2 to 128 users depending
upon the bandwidth requirement and splitters availability.
The GPON access network that we are developing for
Pakistan will promise asymmetrical communication with 2.5
Gb/s downstream and 1.25 Gb/s upstream. GPON
technology supports Ethernet, ATM and WDM by using
superset multi-protocol layer. GPON
(GEM) a transport protocol layer is used to support both
Ethernet as well as ATM protocols.
A. Optical Distribution Network (ODN) Planning
The GPON ODN designed is based upon four basic
sections of PON networks that include:
OLT/CO Planning
Splitter Planning
Route Protection/Diversity Planning
FTTx planning
B. OLT/CO Planning
Location finalization for Optical Line
has great importance, Big impact of OLT location on
increase or decrease in investment. In telecom network the
central office (CO) is Inside Part that houses the OLT and
Optical Distribution Frame (ODF). The ODF is installed
such that the all feeder cable could be terminated on it. An
ODF should not be expanded or any expansion in ODF must
be done in same room. An Optical Distribution Network
(ODN) is planned for serving multi services. The ODF must
To Multi Point (PTMP) Network.
r for each tenant whereas PTMP
used the fiber sharing among a tenant group, typically 32
(a) and (b).
PTP and PTMP Networks
In PTP network, there is an individual dedicated fiber
with a dedicated port of OLT for a single user. Only one
ONT is directly connected to the OLT PON port, requires a
huge investment and not a good approach. It is suggested to
keep spare capacity in feeder and distribution cables to fulfil
such minute demands. However, in PTMP PON network the
al reach is less than that of PTP PON structure that has
no splitters installed in it. A PON port could cover a distance
of 20 Km from the OLT to cover most of the area. PTP PON
networks should be deployed in the remote areas where
nomical but demand exists.
In PTMP PON access networks, PON port is shared
among the subscribers using the splitters. A single OLT
PON port could be shared between 2 to 128 users depending
upon the bandwidth requirement and splitters availability.
access network that we are developing for
Pakistan will promise asymmetrical communication with 2.5
Gb/s downstream and 1.25 Gb/s upstream. GPON
technology supports Ethernet, ATM and WDM by using
GPON Encapsulation Method
a transport protocol layer is used to support both
Ethernet as well as ATM protocols.
Optical Distribution Network (ODN) Planning
The GPON ODN designed is based upon four basic
sections of PON networks that include:
Route Protection/Diversity Planning
Optical Line Terminal (OLT)
has great importance, Big impact of OLT location on
increase or decrease in investment. In telecom network the
central office (CO) is Inside Part that houses the OLT and
Optical Distribution Frame (ODF). The ODF is installed
ll feeder cable could be terminated on it. An
ODF should not be expanded or any expansion in ODF must
be done in same room. An Optical Distribution Network
(ODN) is planned for serving multi services. The ODF must

provide flexible arrangement to manage fib
pigtails, and feeder) with protection for bending radius.
Legacy copper cables Main Distribution Frames (MDFs)
and copper cable chambers are not required for FiberOptic
(FO) cables, since existing standard cable trays and channels
can be used to route fiber cables to ODF. OLT should be
installed in central office (CO) in standard rack with
termination at front side. The OLT rack comprise of 2 to 3
sub racks, each with 16 GPON cards, 4 or 8 PON ports per
GPON card.
Physical reach is defined as the maximum ph
distance between the ONT and the OLT. In GPON,two
options are defined for the physical reach: 10 km and 20 km.
It is assumed that 10 km is themaximum distance over
which FP-LD can be used in the ONU for high bit rates such
as 1.25 Gbit/sor above [19], but it may reduce
available components. The reach range of GPON could be
increased or decreased by changing the location, reducing or
adding the splitter levels. Fig.10 defines the Central Office
(CO) / OLT placement. OLTs are normally installed in
existing exchanges for smooth transformation of copper; this
will reduce the cost by re-utilizing the existing resources.
Existing cable routes of access and junction includin
existing civil structures e.g. Manholes and hand holes should
be used to extend feeder fiber cables to proposed FDH
locations.
OLT should be proposed at place with the concept to feed
the locality within its physical reach. Green Field or remote
far areas should be feed directly by extended PON port.
Boundaries of two OLTs should not be overlapped as it is
the capital wastage. The customers within 500 meters should
be feed directly from OLT without any FDH or FAT
placement. The OLT capacity planning depe
potential business demand and expected demand of tenants.
FDH
JB JB
Zero
Manhole
CO
New Area
Within 15 Km
Exchange
Boundary
Central Office
Old Boundary
Zero
Manhole
Zero
Manhole
JB
JB
JB
3
1
7
4
2
FDH
FDH
FDH
FDH
Exchange
Boundary
Fig.10 OLT Planning
C. Splitter Planning
Splitter planning depends on the 1) Splitter n
2) centralized setting 3) Dispersed setting. Fig
the said three setting, splitter could be used in 2 levels that is
1st splitter of size 1:2 or 2:2 could be installed in central
office and the 2nd splitter of size 1:32 or 2:32, 1:16 or 2:16,
1:8 or 2:8, 1:4 0r 2:4 etc. could be installed in FDH
FAT. Increasing the splitter size will result reduction the
limit of bandwidth with increased number of tenants. A
PON port supports a maximum of 64 customers delivering
the average bandwidth of approx. 38 Mbps per user.
However, in case of deployment single level splitting having
ISSN: 2231-2307, Volume
122
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provide flexible arrangement to manage fibers (jumper,
pigtails, and feeder) with protection for bending radius.
Legacy copper cables Main Distribution Frames (MDFs)
and copper cable chambers are not required for FiberOptic
(FO) cables, since existing standard cable trays and channels
to route fiber cables to ODF. OLT should be
installed in central office (CO) in standard rack with
termination at front side. The OLT rack comprise of 2 to 3
sub racks, each with 16 GPON cards, 4 or 8 PON ports per
maximum physical
ONT and the OLT. In GPON,two
options are defined for the physical reach: 10 km and 20 km.
It is assumed that 10 km is themaximum distance over
LD can be used in the ONU for high bit rates such
but it may reduce with the
available components. The reach range of GPON could be
increased or decreased by changing the location, reducing or
defines the Central Office
(CO) / OLT placement. OLTs are normally installed in
existing exchanges for smooth transformation of copper; this
utilizing the existing resources.
Existing cable routes of access and junction including
existing civil structures e.g. Manholes and hand holes should
be used to extend feeder fiber cables to proposed FDH
OLT should be proposed at place with the concept to feed
reach. Green Field or remote
as should be feed directly by extended PON port.
Boundaries of two OLTs should not be overlapped as it is
the capital wastage. The customers within 500 meters should
be feed directly from OLT without any FDH or FAT
placement. The OLT capacity planning depends upon the
potential business demand and expected demand of tenants.
Zero
Manhole
Zero
Manhole
JB
6
5
FDH
FDH
New Area
Within 15 Km
AN Cable
Junction
Cable
Splitter planning depends on the 1) Splitter n-level setting
ng 3) Dispersed setting. Fig-11 showing
the said three setting, splitter could be used in 2 levels that is
1st splitter of size 1:2 or 2:2 could be installed in central
office and the 2nd splitter of size 1:32 or 2:32, 1:16 or 2:16,
1:8 or 2:8, 1:4 0r 2:4 etc. could be installed in FDH or in
FAT. Increasing the splitter size will result reduction the
limit of bandwidth with increased number of tenants. A
PON port supports a maximum of 64 customers delivering
the average bandwidth of approx. 38 Mbps per user.
t single level splitting having
1:64 or 2:64 splitters, PON port reach is increased
considerably but number of users and bandwidth per users
remains same.
Centralized setting of splitters is useful for small coverage
area and few splitters are required with minimum of splitter
cabinets whereas in decentralized
installed suing the mounted micro ODFs near to a group of
customers, resulting in increased number of splitter cabinets
also PON port usage is poor.
Fig.11 Splitter Planning
D. Telecom Resilience
Network diversity ensures the customer protection for
uninterrupted services. In diversity, there is a compromise
between cost and uninterrupted service availability. There
are three ways to achieve link protection:
• Type A Protection: There is no automatic protection
available in both distribution and feeder.
• Type B Protection: Routing protection is provided in
Type B, only feeder cables are protected by using of 2: N
splitter like 2:2, 2:16, and 2:32 etc., two separate feeder fiber
cables either from same OLT card or from different OLT
card to the Fiber Distribution Hub (FDH)
• Type C Protection: Maximum protection by drawing
both feeder as well as distribution cable in mirrored, it is not
an economical solution.
E.Fiber Flooding-FTTx
Fiber To The-x is actually the fiber flooding from OLT to
ONT. Migration from copper access network to fiber access
network is a step by step transformation. It is based on the
concept of fiber in copper out (FICO) with FTTH is the
ultimate requirement. FTTx in different flavors being
deployed in the world wide, dependi
situation. Fig.12 showing the different variants of FTTx that
includes:
• FTTB – Fiber to the Building
• FTTC – Fiber to the Curb
• FTTH – Fiber to the Home
• FTTM – Fiber to the Mobile (fiber backbone to mobile
BTS towers)
2307, Volume-5 Issue-4, September 2015
Eyes Intelligence Engineering
1:64 or 2:64 splitters, PON port reach is increased
considerably but number of users and bandwidth per users
Centralized setting of splitters is useful for small coverage
area and few splitters are required with minimum of splitter
in decentralized setting, the splitters are
installed suing the mounted micro ODFs near to a group of
ulting in increased number of splitter cabinets
Splitter Planning
Network diversity ensures the customer protection for
uninterrupted services. In diversity, there is a compromise
cost and uninterrupted service availability. There
are three ways to achieve link protection:
Type A Protection: There is no automatic protection
available in both distribution and feeder.
Type B Protection: Routing protection is provided in
eeder cables are protected by using of 2: N
splitter like 2:2, 2:16, and 2:32 etc., two separate feeder fiber
cables either from same OLT card or from different OLT
e Fiber Distribution Hub (FDH)
Type C Protection: Maximum protection by drawing
both feeder as well as distribution cable in mirrored, it is not
x is actually the fiber flooding from OLT to
ONT. Migration from copper access network to fiber access
sformation. It is based on the
concept of fiber in copper out (FICO) with FTTH is the
ultimate requirement. FTTx in different flavors being
deployed in the world wide, depending upon the site
showing the different variants of FTTx that
Fiber to the Building
Fiber to the Home
Fiber to the Mobile (fiber backbone to mobile

Fig.12 FTTX Planning – Fiber Flooding
V. GREEN FIELD AND DRY FIELD AREAS
The fiber count from the central office OLT shall be with
spare capacity and of suitable size that ensure future
requirements of fiber capacity. In planning or forecasting
25% more fibers rounded to the nearest next cable size is
selected e.g. for demand count of 20 fibers, at least 24 fiber
cable is planned. While in fiber cable planning process,
section lengths of Manhole, Hand holes should be
considered keeping in mind the cable drum length to avoid
the unwanted joints or splices that can increase the loss and
results in poor grade of service. To increase customer base
and for business development, the OSP design should be
capable enough to meet with the hidden demand, therefore,
number of direct fibers should be accompanied while
planning for main fiber cables to retain room for the
provision of PTP services or dedicated fiber provisioning.
The spare capacity that is available in junction or existing
PVC cable routes should be utilized to access a remote green
field area to connect a FDH or FAT with the OLT.
Requirements of duct routes and related civil structures
(hand holes, manholes, joint chambers or boxes etc.)
significantly reduced in the PON OSP network due to the
fiber characteristic like high bandwidth carrying capacity
and small in size and most importantly due to fiber splitting.
It should be ensured that the main feeder fiber cables should
not be accessed frequently to divert or put through fibers.
The drop fiber closures and splicing trays should be placed
inside joint boxes located near to group of villas or as per
the field requirement, again cable drum lengths must be
considered while planning for distribution cables.
The OSP deployment in the dry field area is not a
process; it is difficult as compared with development in the
green field areas. Therefore migration from copper to FTTH
in the dry field areas should be done in phases and on case
to case basis in accordance to resource availability.
Deployment of FTTH in the urban areas should be more
preferred over the remote areas. Existing laid fiber cables,
cabinets and the different telecom civil structures of the
network must be considered during the planning and
deployment process of GPON network to reduce th
A. Splitter Calculation and Cable Sizing
In PON access networks a dedicated fiber is required by
every splitter and a dedicated cable from splitter to ONT.
Fiber network have a typical life of 20 years, therefore
Areas of Pakistan
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Fiber Flooding
REAS PLANNING
The fiber count from the central office OLT shall be with
spare capacity and of suitable size that ensure future
requirements of fiber capacity. In planning or forecasting
fibers rounded to the nearest next cable size is
selected e.g. for demand count of 20 fibers, at least 24 fiber
cable is planned. While in fiber cable planning process,
section lengths of Manhole, Hand holes should be
rum length to avoid
the unwanted joints or splices that can increase the loss and
results in poor grade of service. To increase customer base
and for business development, the OSP design should be
capable enough to meet with the hidden demand, therefore,
umber of direct fibers should be accompanied while
planning for main fiber cables to retain room for the
provision of PTP services or dedicated fiber provisioning.
The spare capacity that is available in junction or existing
ized to access a remote green
field area to connect a FDH or FAT with the OLT.
Requirements of duct routes and related civil structures
(hand holes, manholes, joint chambers or boxes etc.)
significantly reduced in the PON OSP network due to the
cteristic like high bandwidth carrying capacity
and small in size and most importantly due to fiber splitting.
It should be ensured that the main feeder fiber cables should
not be accessed frequently to divert or put through fibers.
and splicing trays should be placed
inside joint boxes located near to group of villas or as per
the field requirement, again cable drum lengths must be
considered while planning for distribution cables.
The OSP deployment in the dry field area is not a simple
process; it is difficult as compared with development in the
green field areas. Therefore migration from copper to FTTH
in the dry field areas should be done in phases and on case
to case basis in accordance to resource availability.
TTH in the urban areas should be more
preferred over the remote areas. Existing laid fiber cables,
cabinets and the different telecom civil structures of the
network must be considered during the planning and
deployment process of GPON network to reduce the cost.
Splitter Calculation and Cable Sizing
In PON access networks a dedicated fiber is required by
every splitter and a dedicated cable from splitter to ONT.
Fiber network have a typical life of 20 years, therefore
planning is done to provide a network
the potential services and future demands.
localization of splitters depend on
the mapping distribution of the premises
cost is less than the cost of PVC duct space, the
suggested that to provide the number of fibers to cater for 20
years tenants requirements. Splitters per cabinet are
calculated by total number of tenants dividing by the split
ratio.
Total number of Splitter = No. of Tenants / split ratio
The calculated number of splitters can be used to decide
the size of optical fiber cable, maximum possible expansion
and outstanding fiber.
B. Distribution and Drop Fiber Cables
The distribution cables with loose tube having different
sizes 96F, 48F, 24F, 16F or 8F should be used or any
combination of different sizes depending on the villas
locations, numbers and grouping.
The drop fibers mostly used in the size of 2F core.
Enclosures should be capable to accommodate 8 to 24 drop
cables. In the small building a
located as outdoor and distribution cables should be
considered as the outgoing cables. It is recommended to
splice one fiber of drop cable with the distribution cable to
extend the services to the ONT while keeping the second
fiber spare (stumped). The stumped fiber could be used for
the maintenance purpose or for a
portion of same villas or building.
The scenario of overhead or aerial distribution cables,
fiber cables are erected in similar fashion, wi
fiber cables from FDH and the drop fibers from the
enclosures. The fiber cables in access network must be
properly labeled and arranged. The extended drop fiber
cables in micro ODF installed for single villas in dry and
green fields. All the apartments and flats must be pre cabled
up to the installed micro ODF ensuring that there will be no
splice in between the tenants and micro ODF. Fig.
showing the fiber cable distribution from FDH to each user.
Drop Closures
Outdoor FDH Cabinet
Customer Premises
Fig-13 Cable Distributing from Cabinet
C. Developed PON Infrastructure
Fig.14 (a) to (d) describes the ODN designing for
different scenarios extend PON based services to different
category of users in both green and dry field sites starting
from the OLT in central office till customer’s premises. The
ODN design is finalized by considering all the planning
planning is done to provide a network which could support
the potential services and future demands. The split ratio and
localization of splitters depend on the engineering plan and
the mapping distribution of the premises [20]. Further, fiber
cost is less than the cost of PVC duct space, therefore it is
suggested that to provide the number of fibers to cater for 20
years tenants requirements. Splitters per cabinet are
calculated by total number of tenants dividing by the split
Total number of Splitter = No. of Tenants / split ratio
e calculated number of splitters can be used to decide
the size of optical fiber cable, maximum possible expansion
istribution and Drop Fiber Cables
The distribution cables with loose tube having different
or 8F should be used or any
combination of different sizes depending on the villas
locations, numbers and grouping.
The drop fibers mostly used in the size of 2F core.
Enclosures should be capable to accommodate 8 to 24 drop
cables. In the small building areas or villas the FDH is
located as outdoor and distribution cables should be
considered as the outgoing cables. It is recommended to
splice one fiber of drop cable with the distribution cable to
extend the services to the ONT while keeping the second
er spare (stumped). The stumped fiber could be used for
the maintenance purpose or for an additional connection to a
portion of same villas or building.
The scenario of overhead or aerial distribution cables,
fiber cables are erected in similar fashion, with distribution
fiber cables from FDH and the drop fibers from the
enclosures. The fiber cables in access network must be
properly labeled and arranged. The extended drop fiber
cables in micro ODF installed for single villas in dry and
e apartments and flats must be pre cabled
up to the installed micro ODF ensuring that there will be no
the tenants and micro ODF. Fig.13
showing the fiber cable distribution from FDH to each user.
FDH
2F Drop Cable 16F Cable =
24F Cable =
24F Cable =Lead/in Joint
Cable Distributing from Cabinet
Developed PON Infrastructure
(d) describes the ODN designing for
different scenarios extend PON based services to different
category of users in both green and dry field sites starting
office till customer’s premises. The
ODN design is finalized by considering all the planning

124
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requirements including central office, splitter, route
protection/diversity and FTTx – fiber flooding planning.
Scenarios – I: ODN Design for Villas with Outdoor FDH
OLT ODF
JOINTBOX(JB)
Outdoor FDH
SPLITTER JBWITHDROP
CLOSURE
CASSETTE/
MICROODF
ONT
STB
FO FO
48F/1000F
Ribbon
8F/16F/24F/ Feeder
Loose Tube
2FDrop
Cable
8F/16F/24F
Distribution
Loose Tube
CAT 06 (90 m)
Central Office OutsidePlan InsideVilla
1:2 splitter
Nx (1:32) Splitter
Nx RJ45
Sockets
(a)
Scenarios – II (a): ODN Design for High Rise Building
with Indoor FDH
InsideFlat
OLT ODF
JOINTBOX(JB)
IndoorFDH
SPLITTER
FO FO
48F/1000F
Ribbon
8F/16F/24F/Feeder
Loose Tube
CentralOffice
1:2splitter
Nx (1:32)Splitter
2FDrop
Cable
CASSETTE/
MICROODF ONT
CAT06 (90 m)
NxRJ45
Sockets
STB
OutsidePlan TelecomRoom
(b)
Scenarios – II (b): ODN Design for Small Building (up to
5 Floors) with less than 32 subscribers with Indoor wall
mounted FDH
InsideFlat
OLT ODF
JOINTBOX(JB)
IndoorFDH –
Wall Mounted
SPLITTER
FO FO
48F/1000F
Ribbon
8FFeeder
Loose Tube
Central Office
1:2 splitter
1:32 Splitter
2FDrop
Cable
CASSETTE/
MICROODF ONT
CAT06 (90 m)
NxRJ45
Sockets
STB
OutsidePlan TelecomRoom
(c)
Scenarios – II (c): ODN Design for Small Building (up to
5 Floors) with less than 32 subscribers with Outdoor
FDH
InsideFlat
OLT ODF
JOINTBOX(JB)
OutdoorFDH
SPLITTER
FO FO
48F/1000F
Ribbon
CentralOffice
1:2splitter
CASSETTE/
MICROODF ONT
CAT06 (90 m)
Nx RJ45
Sockets
STB
OutsidePlan
8F/16F/24F/
Feeder Loose Tube
Nx (1:32)Splitter
JBWITHDROP
CLOSURE
2FDrop
Cable
8F/16F/24F
Distribution
Loose Tube
(d)
Fig.14 (a) – (d) Optical Distribution Network – (ODN)
Design
D. Digitization of ODN Using GIS
The ODN access network planning and designing using
the GIS is the utmost requirement. Since, GIS gives help to
analyze the area, to calculate the existing potential demand
as well as the forecasted and anticipated demand. GIS helps
to speed up the designing and planning process by boosting
the survey activities. Separate layer for each OSP network
component should be prepared and are integrated together
with base map to get the final product. Fig.15 to 19
explaining the digitization of ODN access network planning
using GIS.
• First step to have digitized the base map and to draw the
sector boundaries. The exact location for OLT and FDH
along with their service area must be defined by forecasting
the ultimate users shown in Fig-16.
Fig.15 FDH proposed locations
• Duct planning for feeder cables connectivity from
central office OLT to FDH is done according to the
FDH boundaries by considering the cost impact. The
placement of allied civil structures Manholes, Hand
hole and Joint Boxes for PVC duct should also be
planned along, shown in Fig.16.
• Once PVC duct planning for feeder cables is
completed, the feeder fiber cables are calculated as
per the splitter requirements.
Fig.16 Duct and civil structure planning
• Further identify the locations for joint box to connect
each user with distribution cable via drop fiber
cables; it is time taking and most critical activity
shown in Fig.17.
Fig-17 Proposed location of joint boxes and enclosures
(small dots are joint boxes)

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• When the joint box locations have been finalized,
distribution PVC ducts and fiber cables could be
planned as shown in the Fig.18.
Fig.18 Distribution network planning
• At final, all the layers (FDH/FAT locations, its
feeding areas, Feeder PVC ducts and fiber cables,
distribution ducts (if required) with distribution fiber
cables and joint boxes location) are once planned, all
the layers could be integrated to get the final product.
All the network deployment with development
should be done using this planned GIS based ODN
design as shown in Fig.19.
Fig.19 Integrated GIS layers (ODN Design)
E. Power-Budget Calculations of ODN
The ODN design is incomplete and not ready for
deployment until and unless end to end loss calculation is
done and provided with the ODN design. ODN planning
with GIS helps us to complete an optimized design but still
required power budget analysis. Power budgeting is the end
to end calculation of total maximum loss that an ODN
design can offers to each user. In PON system the optical
signals are transmitted by the transceiver with a minimum
and a maximum possible loss threshold, service could not be
provisioned if the single loss level will remain in between
the defined threshold values.
GPON optical transmission is based on class B+ standard,
according to ITU-T G.984. The optical threshold for the
total loss should remain between 13dB and 28dB [21]. ONT
will not receive the service if the received signal strength is
not lie in between the specified range. Attenuator will be
used if the received loss is less the 13db (<13db).
The power budget calculations must be done at the
designing stage that gives the analysis of maximum reach
ability of an OLT PON port. On the later stage, power
budget is calculated at the time of service provisioning to
ensure standard grade of service for each user. However, at
planning stage, it is not possible to calculate power budget
for each and every possible user, with experience, it is learnt
that the power budget loss calculations must be done for the
farthest tenant, as if the service is perfectly extendable to a
distant user then then obviously it could be made available
to rest of the users.
The calculations for power budget are done by summing
the all losses offered by each and every network component.
Following formula has been derived for power budget loss
calculation upon the finalization of ODN:
Total Loss of
ODN
= Sum of all component loss (L)
∑ (L) =
Addition of Summation of all losses
offered by fiber cable (transmission
Loss), offered by physical connectors
(connection), offered by splatters
(splitting loss), offered by splices
(splicing loss),and Engineering margin
∑ (L) = ∑ TL + ∑CL + ∑SL + ∑SPL + EM (1)
∑ TL (per
km)
=
Transmission Loss cables is offered by
the optical fiber cables and measured as
per kilometer (km), generally calculated
for the smallest wavelength as it gives
the maximum loss.
∑ CL (each) =
Loss offered by each connector is
calculated.
∑ SL (each) =
Loss offered by the splitters, different
splitters have different insertion loss,
larger the spit ratio bigger the loss.
∑ SPL (each) =
Loss of each splice (fusion or
mechanical)
EM (each) =
3 dB engineering margin is kept for and
for operation and maintenance (O&M)
and future expansion purposes.
VI. SIMULATIONS AND RESULTS
The Bill of Material (BOM) is required for the
calculations of power budget, so that comparison could be
carried out between the theoretical and practical values
acquired upon physical network deployment of planned
platform in selected area of Pakistan.
The theoretical insertion losses for different ODN
components are commonly known and shown in Table- I
Table- I
Description
Theoretical
Values (dB)
Practical
Values (dB)
Transmission
Loss
0.35 0.36
Splicing Loss 0.1 0.05
Connector
Loss
0.2 0.21
1:64 splitter
loss
19.7 19.8
1:32 splitter
loss
17 17.13

1:16 splitter
loss
13.5
1:8 splitter loss 10.5
Engineering
Margin
3
Table. I Comparison of Theoretical and Practical Loss
values
Practical scenarios are devised to simulate the developed
platform by using theoretical and practical values. The
practical scenarios are devised with of modeled str
mentioned in section 5-C of this document.
The simulation is translated in to simple mathema
model and calculations are done using total loss
derived in section V-E, all the mathematical calculations are
done using Microsoft Excel.
Assumptions (All Scenarios): Capacity of each PON port
is to serve maximum of 64 users, as the OLT
maximum split ratio of 64. A 3dB loss as engineering
margin is included for O&M purpose.
Scenarios – I secure average bandwidth of 37.5 Mb/s
per Tenant using 1-level of splitting.
Fig.20 Results related to scenarios
Result: The proposed platform with this scenarios
showing reduction in total loss by 0.036%. 37.5 Mbps
maximum bandwidth could be easily made available at a
distance of 9.8 km. Using single level or 1
there is increase in the reach ability but it is only effective
for multi-story or high rise buildings.
Scenarios – II securing average bandwidth of 37.5
Mb/s per Tenant with 2-level of splitting
ISSN: 2231-2307, Volume
126
Published By:
13.72
10.69
7.15
3.48
3
Comparison of Theoretical and Practical Loss
scenarios are devised to simulate the developed
platform by using theoretical and practical values. The
practical scenarios are devised with of modeled structures
of this document.
The simulation is translated in to simple mathematical
model and calculations are done using total loss equation
all the mathematical calculations are
: Capacity of each PON port
is to serve maximum of 64 users, as the OLT model with
maximum split ratio of 64. A 3dB loss as engineering
I secure average bandwidth of 37.5 Mb/s
Results related to scenarios – I
Result: The proposed platform with this scenarios
showing reduction in total loss by 0.036%. 37.5 Mbps
be easily made available at a
Using single level or 1-level splitting,
but it is only effective
II securing average bandwidth of 37.5
level of splitting
Results related to scenarios – II
Result: The proposed platform using two
shown reduction in overall loss by 1.033%. The maximum
bandwidth of 37.5 Mbps could be easily made available at a
distance of 4.8 km.
Scenarios – III securing average bandwidth of 37.5
Result: The proposed platform of three levels splitting the
reduction in overall loss by 1.36 %. The maximum
bandwidth of 37.5 Mbps could be easily
distance of only 0.8 km. The loss is improve
less reach ability, 3-level of splitting is not recommended.
Scenarios – IV Securing average bandwidth of 75
Result: The proposed platform in
reduction in overall loss by 0.961%. The average maximum
bandwidth of 75 Mbps could be easily made available at a
distance of 14 km, however half of the PON port capacity is
compromised.
VII. CONCLUSIONS
1) Section V-D (Fig-16 to
Graphical Information (GIS) could be used to design optical
fiber based Outside Plant. The optical distribution network
designed on GIS will be an efficient and optimized network
required by a service provider to fulfil customer
expectations.
2) The proposed planning guidelines together with the
equation of total loss:
∑ ( L) = ∑ TL + ∑CL + ∑
Will help the operator to develop desired platform for the
OSP using PON infrastructure for green and dry field areas
of Pakistan.
2307, Volume-5 Issue-4, September 2015
Eyes Intelligence Engineering
Result: The proposed platform using two levels splitting
shown reduction in overall loss by 1.033%. The maximum
III securing average bandwidth of 37.5
level of splitting
Results related to scenarios – III
Result: The proposed platform of three levels splitting the
reduction in overall loss by 1.36 %. The maximum
distance of only 0.8 km. The loss is improved, but due to
level of splitting is not recommended.
IV Securing average bandwidth of 75
level of splitting
Results related to scenarios – IV
Result: The proposed platform in this scenarios shown
reduction in overall loss by 0.961%. The average maximum
bandwidth of 75 Mbps could be easily made available at a
distance of 14 km, however half of the PON port capacity is
ONCLUSIONS
to 20) shows how the Geo
Graphical Information (GIS) could be used to design optical
fiber based Outside Plant. The optical distribution network
designed on GIS will be an efficient and optimized network
required by a service provider to fulfil customer
proposed planning guidelines together with the
∑CL + ∑SL + ∑SPL + EM
help the operator to develop desired platform for the
OSP using PON infrastructure for green and dry field areas

Areas of Pakistan
127
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3) Section VI (Fig-21 to 24) shows that developed
platform will not only equipped the service providers of
Pakistan with an optimized way of planning but it will also
help them to perform:
i. Bandwidth analysis and its forecasting, the actual
requirement of the customers can be easily identified for
futuristic planning by effective assortment and
anticipation of forecasted tenancy. Further, it will support
the planner’s tocalculate the bandwidth requirement of
each and every user along with the bandwidth
requirement of the system.
ii. Scalable optimized network designing, the optical
distribution network based on developed platform can be
easily expanded if additional demand is raised in the same
area. Also, PON based services could be easily extended
by increasing the reachability of the PON ports.
iii. Deployed of OSP with minimum CAPEX by maximizing
quality along with efficient and time saving development.
4) The developed platform could extend additional
support in:
i. Network re-engineering, the infrastructure based on this
platform is future proof and can incorporated any
technological advancements that is same optical access
network will be used with new Inside plant
equipment’s.
ii. Fault localization and management, as the network is
available in digitized form and if physical changes and
amendments are updated in the already digitized
network then fault tracing and its rectification is
possible.
iii. Marketing of new services, order booking for new
customers is possible by confirming resource
availability with the help of updated digitized network
footprint.
VIII. FUTURE WORK
Having seen the results given above, it is evident that the
world is going towards digitization. However, there is a
need to break the silos so that information sharing process
could be speed up. Therefore, integration of different
platforms is required, it is not necessary that all these
discrete platforms are directly linked to each other instead
they are inter depend to achieve the same cause.
GIS
• Telecom Model
• Inventory Location
• Pair Mapping
ERP Inventory Module
• Reference
Inventory
• Instance Inventory
Customer Resource
Management - CRM
• Fault Inventory
Billing and Customer
Care
• Fault Inventory
NOC
• Alarm Inventory
Network
Planning
Fig.24 GIS Integration
Fig.24 shows an example of indirectly inter depended
platforms that are working for single purpose that is to
achieve business excellence. The platforms shown are
National Operation Center (NOC) which monitors all active
network elements to ensure normally service delivery to
customers, Billing and Customer Care (Bn CC) captures
customer demands and divert it to concerned departments
for service provisioning, Customer Resource Management
(CRM) register customer complaint and refers it to
concerned team for rectification, Enterprise Resource
Planning (ERP) an inventory management system, and Geo
graphic Information System (GIS).
In the coming future, it will be a requirement that all of
such platforms could be integrated altogether with the help
of GIS system. The integration will results in the real time
monitoring of customer complaints, new customer requests,
and NOC alarms with geo-graphical information.
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