Word format gi fi documentation

DISSERTATION SUBMITTED
IN PARTIAL FULFILLMENT OF THE REQUIREMENT
FOR THE AWARD OF DEGREE OF
Bachelor of Technology
In
Electronics and Communication Engineering
By:
A.LINGA REDDY 11m91a0433
E.VIKRAM 11m91a0441
DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
AURORA’S SCIENTIFIC AND TECHNOLOGICAL INSTITUTE
Aushapur (V), Ghatkesar (M), R. R. Dist - 501 301

DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
CERTIFICATE
This is to certify that this project report entitled ”GI-FI TECHNOLOGY” by A.LINGA
REDDY H. T. No: 11M91A0433 submitted in partial fulfillment of the requirements for the degree
of Bachelor of Technology in Electronics and Communication Engineering of the Jawaharlal
Nehru Technological University, Hyderabad, during the academic year 2012-13, is a bonafide
record of work carried out under our guidance and supervision.
The results embodied in this report have not been submitted to any other University or
Institution for the award of any degree or diploma.
Certified further to the best of our knowledge that the candidate has not submitted the work along
with the results presented in this project report at any other place for the award of any other degree.
Internal Guide R.SRINIVASA RAO
Y.B.T SUNDARI (Head of Department)

ACKNOWLEDGEMENT
It is our pleasure for us to acknowledge and thank Mr.K.L.Narasimha Rao,
principle for his kind co-operation and encouragement.
We express our profound gratitude to Mr.R.Srinivasa Rao, HOD, Dept. of
ECE for providing facilities to complete our work successfully.
We found immense pleasure in expressing our gratitude to Mrs Y.B.T
SUNDARI the guide, designation, Dept. of ECE who has been our project guide
and who has helped us in the successful completion of our work.
We offer our sincere thanks to all our teaching and non teaching staff of
Dept.of ECE who has indirectly and directly A.LINGA REDDY(11M91A0433),
E.VIKRAM(11M91A0441).

GI-FI TECHNOLOGY
ABSTRACT
For many years, cables ruled the world. Optical-fibbers’ played a dominant role
because of its higher bit rates and faster transmission. But the installation of cables
caused a greater difficulty and thus led to wireless access. The foremost of this is
Bluetooth, which can cover 9-10metres. Wi-Fi followed it having coverage area of
91metres.
No doubt, introduction of Wi-Fi (Wireless Fidelity) has brought a revolutionary
solution to “last mile” problem. However, the standard's original limitations for data
exchange rate and range, number of channels, high cost of the infrastructure have not
yet made it possible for Wi-Fi to become a total threat to cellular networks on one hand,
and hard-wire networks, on the other. But the man’s continuous quest for even better
technology despite the substantial advantages of present technologies led to the
introduction of new, more up-to-date standards for data exchange rate i.e., GI-FI .It will
help to push wireless communications to faster drive.
GI-FI (Gigabit Fidelity) or Gigabit Wireless is the world's first transceiver
integrated on a single chip that operates at 60GHz on the CMOS process. It will allow
wireless transfer of audio and video data up to 5 Gigabits per second, ten times the
current maximum wireless transfer rate at one-tenth of the cost, usually within a range
of 10 meters. It utilizes a 5mm square chip and a 1mm wide antenna burning less than
2 mw of power to transmit data wirelessly over short distances, much like Bluetooth.
The development will enable the truly wireless office and home in the future. As
the integrated transceiver is extremely small, it can be embedded into devices. The
breakthrough will mean the networking of office and home equipment without wires will
finally become a reality. In this paper we present a low cost, low power and high
broadband chip, which will be vital in enabling the digital economy of the future.
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GI-FI TECHNOLOGY
1. INTRODUCTION
Wi-Fi (IEEE-802.11b) and WI-MAX (IEEE-802.16e) have captured our attention,
as there are no recent developments in the above technologies which cannot transfer
data and video information at a faster rate and led to the introduction of GI-FI
technology. It offers some advantages over Wi-Fi, a similar wireless technology, that
offers faster information rate in Gbps less power consumption and low cost for short
range transmissions.
GI-FI or Gigabit Wireless is the world’s first transceiver integrated on a single
chip in which a small antenna used and both transmitter- receiver are integrated on a
single chip which is fabricated using the complementary metal oxide semiconductor
(CMOS) process. Because of GI-FI transfer of large videos, files can be done within
seconds.
Researchers of Melbourne University has come up with a wireless technology
which promises high speed short range data transfers with a speed of up to 5Gbps
within a radius of 10 meters. The new wireless technology is named as GI-FI and
operates on the 60GHz frequency band, which is currently mostly unused. The GI-FI
Chip developed by the Australian researcher’s measures 5mm square and is
manufactured using existing complementary metal-oxide-semiconductor (CMOS)
technology, the same system that is currently used to print silicon chips.
The best part about this new technology is its cost effectiveness and power
consumption, it consumes only 2watts of power for its operation with antenna (1mm)
included and the development of GI-FI chip costs approximately $10( Rs 380) to
manufacture.
In theory this technology would transfers GB’s of your favourite high definition
movies in seconds. So GI-FI can be considered as a challenger to Bluetooth rather than
Wi-Fi and could find applications ranging from new mobile phones to consumer
electronics.
WHY GI-FI ?
The reason for pushing into GI-FI technology is because of slow rate, high power
consumption, low range of frequency operations of earlier technologies i.e. Bluetooth
and Wi-Fi. see the comparisons and features of those two technologies.
Page 2

GI-FI TECHNOLOGY
1.1 Reasons for opting GI-FI:
The reason for pushing into GI-FI technology is because of slow rate, high power
consumption, low range of frequency operations of earlier technologies i.e. Bluetooth and Wi-Fi.
1.2 Bluetooth:
Bluetooth is an open wireless technology standard for exchanging data over short
distances (using short wavelength radio transmissions) from fixed and mobile devices, creating
personal area networks (PANs) with high levels of security. Created by telecoms vendor
Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It
can connect several devices, overcoming problems of synchronization. Today Bluetooth is
managed by the Bluetooth Special Interest Group. Bluetooth uses a radio technology called
frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks
of it on up to 79 bands (1 MHz each) in the range 2402-2480 MHz . This is in the globally
unlicensed Industrial, Scientific and Medical 2.4 GHz short-range radio frequency band.
Bluetooth is a wireless technology standard for exchanging data over short distances (using
short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile
devices, creating personal area networks (PANs) with high levels of security. Created by telecom
vendor Ericsson in 1994, it was originally conceived as a wireless alternative data cables. It can
connect several devices, overcoming problems of synchronization.
Bluetooth is managed by the Bluetooth Special Interest Group, which has more than
17,000 member companies in the areas of telecommunication, computing, networking, and
consumer electronics. The SIG oversees the development of the specification, manages the
qualification program, and protects the trademarks. To be marketed as a Bluetooth device, it
must be qualified to standards defined by the SIGA network of patents is required to
implement the technology and are licensed only for those qualifying devices.
1.3 WI-FI
Wi-Fi technology builds on IEEE 802.11 standards. Wi-Fi allows the deployment of local
area networks (LANs) without wires for client devices, typically reducing the costs of network
deployment and expansion. Spaces where cables cannot be run, such as outdoor areas and
historical buildings, can host wireless LANs. As of 2010 manufacturers are building wireless
Page 3

GI-FI TECHNOLOGY
Network adapters into most laptops. The price of chipsets for Wi-Fi continues to drop, making it
an economical networking option included in even more devices. Wi-Fi has become widespread
in corporate infrastructures. Different competitive brands of access points and client network-
interfaces can inter-operate at a basic level of service. Products designated as "Wi-Fi Certified"
by the Wi-Fi Alliance are backwards compatible. "Wi-Fi" designates a globally operative set of
standards: unlike mobile phones, any standard Wi-Fi device will work anywhere in the world.
A device that can use Wi-Fi (such as a personal computer, video-game console,
smart phone, tablet, or digital audio player) can connect to a network resource such as the
Internet via a wireless network access point. Such an access point (or hotspot) has a range
of about 20 meters (65 feet) indoors and a greater range outdoors. Hotspot coverage can
comprise an area as small as a single room with walls that block radio waves or as large as
many square miles — this is achieved by using multiple overlapping access points.
Wi-Fi can be less secure than wired connections (such as Ethernet) because an
intruder does not need a physical connection. Web pages that use SSL are secure but
unencrypted internet access can easily be detected by intruders. Because of this Wi-Fi
has adopted various encryption technologies. The early encryption WEP, proved easy to
break. Higher quality protocols (WPA, WPA2) were added later. An optional feature
added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an
attacker to recover the router's password.
[2]
The Wi-Fi Alliance has since updated its
test plan and certification program to ensure all newly certified devices resist attacks.
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GI-FI TECHNOLOGY
1.4 Bluetooth versus WI-FI
Bluetooth and Wi-Fi are different standards for wireless communication

Table 1.4.1 Bluetooth v’s WI-FI
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GI-FI TECHNOLOGY
1.5 Applications of Bluetooth vs. WI-FI:
Bluetooth technology is useful when transferring information between two or more
devices that are near each other when speed is not an issue, such as telephones, printers,
modems and headsets. It is best suited to low-bandwidth applications like transferring sound
data with telephones (i.e. with a Bluetooth headset) or byte data with hand-held computers
(transferring files). Wi-Fi is better suited for operating full-scale networks because it enables a
faster connection, better range from the base station, and better security than Bluetooth.
1.6 Disadvantages of Bluetooth and WI-FI:
From above table we can conclude that the bit rates of Bluetooth is 800Kbps and Wi-Fi
has 11Mbps.Both are having higher power consumptions and lower frequency of operation
2.4GHz.For transferring large amount of videos ,audios, data files take hours of time. So to have
higher data transfer rate at lower power consumption we move onto GI-FI technology.
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GI-FI TECHNOLOGY
2. GI-FI
GI-FI or gigabit wireless is the world’s first transceiver integrated on a single chip that
operates at 60GHz on the cmos process. It will allow wireless transfer of audio and video
data at up to 5gigabits per second, ten times the current maximum wireless transfer rate, at
one-tenth the cost. NICTA researchers have chosen to develop this technology in the 57-
64GHz unlicensed frequency band as the millimetre wave range of the spectrum makes
possible high component on-chip integration as well as allowing for the integration of very
small high gain arrays. The available 7GHz of spectrum results in very high data rates, up to
5 gigabits per second to users within an indoor environment, usually within a range of 10
metres .It satisfies the standards of IEEE 802.15.3C .The GI-FI integrated wireless
transceiver chip developed at the National ICT Research Centre, Australia
A new silicon chip developed in Melbourne is predicted to revolutionize the way
household gadgets like televisions, phones and DVD players talk to each other. The tiny
five-millimeter-a-side chip can transmit data through a wireless connection at a
breakthrough five gigabits per second over distances of up to 10 meters. An entire high-
definition movie could be transmitted to a mobile phone in a few seconds, and the
phone could then upload the movie to a home computer or screen at the same speed.
The "GI-FI" was unveiled today at the Melbourne University-based laboratories of
NICTA, the national information and communications technology research centre.
Short-range wireless technology is a hotly contested area, with research teams around the
world racing to be the first to launch such a product. Professor SKAFIADAS said his team was the
first to demonstrate a working transceiver-on-a-chip that uses CMOS (complementary metal-oxide-
semiconductor) technology - the cheap, ubiquitous technique that prints silicon chips.
This means his team is ahead and stood in front of the competition in terms of
price and power demand. His chip uses only a tiny one millimetre wide antenna and
less than two watts of power, and would cost less than $10 to manufacture.
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GI-FI TECHNOLOGY
Fig 2.1 Chip OF GI-FI
The chip shown in the above figure uses the 60GHz "millimetre wave" spectrum
to transmit the data, which gives an advantage over Wi-Fi (wireless internet). Wi-Fi's
part of the spectrum is increasingly crowded, sharing the waves with devices such as
cordless phones, which leads to interference and slower speeds. But the millimetre
wave spectrum (30 to 300 GHz) is almost unoccupied, and the new chip is potentially
hundreds of times faster than the average home Wi-Fi unit. However, Wi-Fi still benefits
from being able to provide wireless coverage over a greater distance.

GI-FI TECHNOLOGY
3. TECHNOLOGIES USED
This mm Wave WPAN will operate in the new and clear band including 57-64
GHz unlicensed band defined by FCC 47 CFR 15.255. The millimetre wave WPAN will
allow high coexistence (close physical spacing) with all other microwave systems in the
802.15 family of WPANs. Two Technologies that help realize GWLAN are,
1. Multiple Input Multiple Output (MIMO)
2. System-On-a-Package(SOP)
3.1 MULTIPLE INPUT MULTIPLE OUTPUT:
 MIMO wireless is an emerging cost effective technology that offers substantial
leverages in making 1Gbps wireless links a reality. We can in principle, meet the
1Gbps data rate requirement if the product of bandwidth (measured in Hz) and
spectral efficiency (measured in bps/Hz) equals 10^9.
 MIMO wireless constitutes a technological breakthrough that will allow Gbps
speeds in NLOS wireless networks.
 The performance improvements resulting from the use of MIMO systems are due to
1. Array gain
2. Diversity gain
3. Spatial Multiplexing Gain
4. Interference Reduction
3.2 SYSTEM-ON-A-PACKAGE:
SOP approach for the next-generation wireless solution is a more feasible option than SOC .
 Recent development of materials and processes in packaging area makes it
possible to bring the concept of SOP into the RF world to meet the stringent
needs in wireless communication area.
 Wireless devices implementing complex functionality require a large amount of circuitry
and consequently, require a large conventional package or MCM real estate.
 SOP goes one step beyond Multi Chip Module (MCM) by enhancing overall
performances and adding more functionalities . Page 9

GI-FI TECHNOLOGY
4. WORKING PRINCIPLE USED IN GI-FI
In this we will use time division duplex for both transmission and receiving. Here
data files are up converted from IF range to RF60Ghz range by using 2 mixers and we
will fed this to an power amplifier, which feeds millimetre wave antenna.
The incoming RF signal is first down converted to an IF signal centered at 5
GHz and then to normal data ranges. Here we will use heterodyne construction for this
process to avoid leakages due to direct conversion and due to availability of 7Ghz
spectrum the total data will be will be transferred within seconds.
4.1 Time -Division Duplex:
Time-Division Duplex (TDD) is the application of time-division multiplexing to separate
outward and return signals. It emulates full duplex communication over a half duplex
communication link. Time division duplex has a strong advantage in the case where the
asymmetry of the uplink and downlink data speed is variable. As uplink traffic increases, more
channel capacity can dynamically be allocated to that, and as it shrinks it can be taken away.

4.1.1 Oxygen Attenuation vs. Frequency Page 10

GI-FI TECHNOLOGY
5. FREQUENCY OF OPERATION
5.1 Operation at 60 GhZ:
Here we will use millimetre wave antenna which will operate at 60Ghz frequency which
is unlined band .Because of this band we are achieving high data rates energy propagation in
the 60 GHz band has unique characteristics that make possible many other benefits such as
excellent immunity to co-channel interference, high security, and frequency re-use.
Point-to-point wireless systems operating at 60 GHz have been used for many years
for satellite-to-satellite communications. This is because of high oxygen absorption at 60
GHz (10-15 dB/Km).As shown in the figure 5.1.1 the absorption attenuates 60 GHz signals
over distance, so that signals cannot travel far beyond their intended recipient. For this
reason, 60GHz is an excellent choice for covert communication.
5.2 Ultra wide band frequency usage:
UWB , a technology with high bit rate, high security and faster data transmission. It is a
zero carrier technique with low coverage area. So we have low power consumption. These
features are Ultra-Wideband is a technology for transmitting information spread over a large
bandwidth (>500 MHz) that should, be able to share spectrum with other users. Regulatory
settings of FCC are intended to provide an efficient use of scarce radio bandwidth while
enabling both high data rate personal-area network (PAN) wireless connectivity and longer-
range, low data rate applications as well as radar and imaging system.
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GI-FI TECHNOLOGY
6. FEATURES OF GI-FI
The features of GI-FI have been standardized with many objectives like
High speed data transfer:
The main invention of GI-FI to provide higher bit rate .As the name itself
indicates that data transfer rate is in Giga bits per second. Speed of GI-FI is 5Gbps,
which is 10 times the present data transfer. Because of wider availability of continuous 7
Ghz spectrum it results in high data rates.
Low Power Consumption:
Though large amount of information transfer takes place it utilizes milli watts of
power only. It consumes only 2mwatt power for data transfer of gigabits of information,
whereas in present technologies it takes 10 mwatt power which is very high.
High Security:
Point-to-point wireless systems operating at 60 GHz have been used for many
years by the intelligence community for high security communications and by the
military for satellite-to satellite communications. The combined effects of O2 absorption
and narrow beam spread result in high security and low interference.
Cost-effective:
GI-FI is based on an open, international standard. Mass adoption of the
standard, and the use of low-cost, mass-produced chipsets, will drive costs down
dramatically, and the resultant integrated wireless transceiver chip which transfers data
at high speed, low power at low price $10 only which is very less As compare to present
systems .As go on development the price will be decreased.
Other features:
1. High level of frequency re-use enabled – communication needs of multiple
customers within a small geographic region can be satisfied
2. It is also highly portable-we can construct where ever we want.
3. It deploys line of sight operation having only shorter coverage area, it has more
flexible architecture. Page 12

GI-FI TECHNOLOGY
7. APPLICATIONS
There are many usage scenarios that can be addressed by GI-FI. The following
are some applications of GI-FI .
GI-FI access devices:
Fig :7.1 GI-FI access devices
Some of the GI-FI access devices are shown in fig 7.0.1.These access devices
include termination units, internal radio modules, network interface cards ,printers, PC’s,
and all household electronic appliances.
There are many usage scenarios that can be addressed by GI-FI. The following are
some mobility usage applications of GI-FI.
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GI-FI TECHNOLOGY
Inter-vehicle communication system :
Fig: 7.2 Inter Vehicle Communication System
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GI-FI TECHNOLOGY
Huge data file transmission:
It will transfer gigabits of information with in seconds.
Broadcasting video signal transmission system in sports stadium :
Fig:7.3 Broadcasting video signals
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GI-FI TECHNOLOGY
Easy and immediate construction of temporal broadband network such as in sports
stadium for the advertisement of information distribution can be possible as shown in fig
7.2.
Office appliances:
Fig:7.4 Office appliances
As GI-FI data transfer rate is very high we can transfer data at very high speed
in offices as shown in fig 7.0.3 which made work very easy and it also provides high
quality of information from the internet.
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GI-FI TECHNOLOGY
Video information transfer:
Fig 7.5 Video information transfer
By using present technologies video swapping takes hours of time where as
with this technology as shown in fig 7.0.4 we can transfer data at a speed of giga
bits/sec same as that for the transfer of information from a PC to a mobile and vice-
versa.
House hold appliances:
Consumers could typically download a high definition movie from a kiosk in a matter
of seconds to a music player or smart phone and having got home could play it on a home
theatre
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GI-FI TECHNOLOGY
system or store it on a home server for future viewing, again within a few seconds.
high speed internet access, streaming content download (video on demand hdtv ,
home theater, etc.), real time streaming and wireless data bus for cable replacement
It makes the wireless home and office of the future.
Within five years, we expect GI-FI to be the dominant technology for wireless
networking. By that time it will be fully mobile, as well as providing low- cost, high
broadband access, with very high speed large files swapped with in seconds which
will develop wire less home and office of future.
If the success of WI-FI and the imminent wide usage of WIMAX is any
indication, GI-FI potentially can bring wireless broadband to the enterprise in an
entirely new way.
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GI-FI TECHNOLOGY
8. FUTURE SCOPE
As the integrated transceiver is extremely small, it can be embedded into
devices. The breakthrough will mean the networking of office and home equipment
without wires will finally become a reality. The GI-FI integrated transceiver chip may be
launched by the starting of next year by NICTA. Due to the less cost of chip so many
companies are coming forward to launch the chip. The potential of mm-wave range for
ultra fast data exchange has prompted many companies like intel , LG, Panasonic,
Samsung, Sony& Toshiba to form wireless HD. Specifically wireless HD has a stated
goal of enabling wireless connectivity for streaming high definition content between
source devices and high definition devices.
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devices.GI-FI TECHNOLOGY
9. CONCLUSION
Within five years, we expect GI-FI to be the dominant technology for wireless
networking. By that time it will be to provide services with low-cost, high broadband
access, and with very high speed large files swapped within seconds which will
develop wireless home and office of future. If the success of Wi-Fi and the imminent
wide usage of WIMAX IS any indication, GI-FI potentially can bring wireless
broadband to the enterprise in an entirely new way.
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GI-FI TECHNOLOGY
10. REFERENCES
1. http://www.yuvaengineers.com/?p=570
2. http://www.slipperybrick.com/2008/02/gifi-chip
3.http://www.mobilemag.com/2008/02/22/forget-wifi-get-5gps-speeds-with-gifi-
wireless.
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