Delay telerant network
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Transcript of Delay telerant network
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Advanced Computer Networks
Topic: Delay Tolerant Network
Shashikant V. AthawaleAssistant Professor
Department of Computer Engineering, AISSMS COE ,Pune
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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
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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.
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Contd..
• Communication is possible even if end-to-end connectivity is never achievable.
• Exploiting node’s mobility.
• Using store-carry-forward fashion.
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How Delay tolerant Network Works
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Contd..
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Key Properties Of DTNsHigh Latency
Low Data Rate
Disconnection
Long Queuing Delay
Short Range Contact
Dynamic Network Topology
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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
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Delay Tolerant Network Architecture
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Delay Tolerant NetworkApplicationsTelemedicine for Developing
RegionsDTN-based Social Network ServiceCommunication in the Presence of
Oppressive GovernmentsFile Sharing and Bulk Data TransferShare Air Minutes