Advanced Computer Networks
Topic: Delay Tolerant Network
Shashikant V. Athawale
Assistant Professor
Department of Computer Engineering,
AISSMS COE ,Pune
Agenda
 What is Delay Tolerant Network.
 Key Properties Of Delay Tolerant Network.
 Characteristics Of Delay Tolerant Network.
 Delay Tolerant Network Architecture
 Delay Tolerant Network Applications
What is Delay Tolerant
Network
 Delay-tolerant networking (DTN) is an
approach to computer network which address the
technical issues in heterogeneous net work that
may lack network connectivity.
 Delay tolerant Network is set of protocols act
together performing store carry and forward
communication.
Contd..
• Communication is possible even if end-to-
end connectivity is never achievable.
• Exploiting node’s mobility.
• Using store-carry-forward fashion.
How Delay tolerant Network
Works
Contd..
Key Properties Of DTNs
 High Latency
 Low Data Rate
 Disconnection
 Long Queuing Delay
 Short Range Contact
 Dynamic Network Topology
Characteristics of DTN.
 Characteristics of DTN
◦ No end-to-end path
◦ Intermittent connectivity
◦ Dynamic topology
◦ Long delay
 DTN routing
◦ Flooding-based: redundancy
◦ Forwarding-based: require topology
information
Delay Tolerant Network
Architecture
Delay Tolerant Network
Applications
 Telemedicine for Developing
Regions
 DTN-based Social Network Service
 Communication in the Presence of
Oppressive Governments
 File Sharing and Bulk Data Transfer
 Share Air Minutes

Delay telerant network

  • 1.
    Advanced Computer Networks Topic:Delay Tolerant Network Shashikant V. Athawale Assistant Professor Department of Computer Engineering, AISSMS COE ,Pune
  • 2.
    Agenda  What isDelay Tolerant Network.  Key Properties Of Delay Tolerant Network.  Characteristics Of Delay Tolerant Network.  Delay Tolerant Network Architecture  Delay Tolerant Network Applications
  • 3.
    What is DelayTolerant Network  Delay-tolerant networking (DTN) is an approach to computer network which address the technical issues in heterogeneous net work that may lack network connectivity.  Delay tolerant Network is set of protocols act together performing store carry and forward communication.
  • 4.
    Contd.. • Communication ispossible even if end-to- end connectivity is never achievable. • Exploiting node’s mobility. • Using store-carry-forward fashion.
  • 5.
    How Delay tolerantNetwork Works
  • 6.
  • 7.
    Key Properties OfDTNs  High Latency  Low Data Rate  Disconnection  Long Queuing Delay  Short Range Contact  Dynamic Network Topology
  • 8.
    Characteristics of DTN. Characteristics of DTN ◦ No end-to-end path ◦ Intermittent connectivity ◦ Dynamic topology ◦ Long delay  DTN routing ◦ Flooding-based: redundancy ◦ Forwarding-based: require topology information
  • 9.
  • 10.
    Delay Tolerant Network Applications Telemedicine for Developing Regions  DTN-based Social Network Service  Communication in the Presence of Oppressive Governments  File Sharing and Bulk Data Transfer  Share Air Minutes