Smart health NDNoT named data network of things for healthcare services

Divya Saxena
Dr. Vaskar Raychoudhury
Nalluri SriMahathi
Department of Computer Science & Engineering
Indian Institute of Technology, Roorkee, India
SmartHealth-NDNoT: Named Data
Network of Things for Healthcare
Services
September 7, 2015 SmartHealth-NDNoT 1

Organization
Introduction
Internet of Things
Research gaps
Named Data Networking
Characteristics / features and main components
Open mHealth architecture
Proposed system architecture
Naming conventions
Testing of the prototype mobile healthcare
application

Introduction
Availability of services
Infrastructure is needed to cater the needs
of growing population
Patient’s inconvenience, long wait,
exposure to germs, leave from work
September 7, 2015 SmartHealth-NDNoT <3>

Internet of Things (IoT) for
Healthcare Services
Smart healthcare aims to build an IoT using wearable vital-
sign sensors connected through low-power wireless
technologies
http://www.mobile-sensing.com/products.html

Smart Objects
Smart Object
Sensing
Capability
Communication
Capability
Unique
Identifier

Requirements of IoT
Every object must be uniquely identifiable
Sender’s privacy and content security
must be preserved
Sensors data must be efficiently
distributed in the network

Internet – Growth
Source: Cisco

Internet - Now

Research gaps
Huge number of devices
Unstable wireless communication
channels
Requirements of high security and privacy

Named Data Networking (NDN)
No name translation to IP address
Contents are well distributed across the
hosts, reduces the effect of node failure
User mobility
Security and Privacy

Smart Healthcare
 Objectives
To develop an intelligent system for real-time
remote patient monitoring, diagnosis and
clinical care using Named Data Networking
(NDN)

NDN Overview

Current Internet
vs.
Distribution Network
ISP
ISP
ISP
ISP

NDN Hourglass Architecture
Data-centric
Addressing
Host-centric
Addressing
Internet NDN

Packets in NDN Architecture
Content Name Selector Nonce
order preference, publisher filter, scope,...
Interest packet
Content Name Signature Signed info
digest algorithm, witness,...
Data packet
publisher ID, key locator, stale time,...
Data

NDN Router Data Structures
Names List of nonce List of incoming interfaces List of outgoing interfaces
Content
Name
Nonce Interface ID Lifetime Interface ID Send-time
Name
Prefixes
Stale Time Interfaces Ranked by Forwarding Policies
Name
Prefix
Time
Interface
ID
Routing
Preference
RTT Status Rate Limit
Pending Information Table (PIT) New
Forwarding Information Base (FIB) New
Content Store (CS) New
Responsible for caching data items

Forwarding Process at NDN Node
Content Store
(CS)
Content Store
(CS)
Pending Interest
Table (PIT)
Pending Interest
Table (PIT)
FIB
Add Request Port
Create PIT entry
Drop Interest Packet
Return data
Content Store
(CS)
Content Store
(CS)
Pending Interest
Table (PIT)
Pending Interest
Table (PIT)
Drop Data
Data Packet
Process
Interest Packet
Process
Delete PIT Entry
Forward Data
Cache Data
Data
Packet
Interest
Packet
Miss
MatchedExact Matching
Longest Prefix Matching

NDN Forwarding Process
Interest Packet
Data Packet
Content Requester
Content
Provider
Destination Address
Source Address
IP Packet
Content
Store
FIB
Content Requester
Content Store
(CS)
Content Store
(CS)
Pending Interest
Table (PIT)
Pending Interest
Table (PIT)
FIB
Add Request Port
Create PIT entry
Drop Interest Packet
Return data
Content Store
(CS)
Content Store
(CS)
Pending Interest
Table (PIT)
Pending Interest
Table (PIT)
Drop Data
Data Packet
Process
Interest Packet
Process
Delete PIT Entry
Forward Data
Cache Data
Data
Packet
Interest
Packet
Miss
MatchedExact Matching
Longest Prefix Matching

Naming
Content requester/Application generated name
Version/Segment
Organizational nameGlobally-routable name
in/ac/iitr/btech/CS/ACN/lec/chapter1.ppt/2
Coventional/automatic
11 3322
iitr.ac.in
btech
CS
lec
Chapter1.ppt
ACN

Open mHealth Architecture
Standardized personal
data vaults and health
specific data exchange
protocols
Re-usable health data
and knowledge
services
Mobile plateforms iPhone/
Android/Feature Phones
mHealth Architecture
Analysis/visualization/
feedback
Storage
Data transport
Processing
Data capture
Patient/Caregivers
Open

System Architecture
Home
Network
Centralized
Enviroment
Distributedenviroment
Services
Operational
Servers
Network
Endpoints
Central Controller
Networking Services
& Database
NDNoT Gateway
Embedded Systems
& Sensors
Data
Collection
Data
Transfer
Data
Processing&
analysis/
Visualization.
Service
Locator
NDNofThings(NDNoT)

NDN Naming Convention
Hospital/HospitalID/PatientName/Patient
ID/ Timestamp/Geolocation/DataName

Sensors Sub-system
Figure 6. Sensors sub-system

Topology for Proposed NDN-based
Healthcare Architecture
Controller C
Hospital
Server B
(HSB)
Hospital
Server A
(HSA)
Mobile User M
IR1
IR2

Testing of the Prototype Mobile
Healthcare Application

Step 1: Mobile User M’s
Updated FIB

Step 2: Sending Interest from
Mobile User M Interface

Step 3: Data packet Received at
Hospital Server B Interface

Step 4: Healthcare Server Interface
for Report Generation

Step 5: Healthcare Server Interface
for Graph Plotting

Smart health NDNoT named data network of things for healthcare services

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