Reliable Bulk-Data Dissemination in Delay Tolerant Networks

Delay/Disruption Tolerant Network (DTN) differs from the conventional networks in that it has no continuous or contemporaneous connections among wireless nodes. Its inherent characteristic of intermittent connections makes existing routing solutions hardly to be applied directly. Epidemic routing us...

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Vydáno v:IEEE transactions on parallel and distributed systems Ročník 25; číslo 8; s. 2180 - 2189
Hlavní autoři: Zeng, Deze, Guo, Song, Hu, Jiankun
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.08.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Coding
Computer networks
Delay
delay tolerant networks
Delays
Dynamics
Encoding
Joints
Mathematical analysis
Network coding
Networks
performance evaluation
Relays
Reliability
Routing
Routing (telecommunications)
Segmented network coding
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ISSN:1045-9219, 1558-2183
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Shrnutí:Delay/Disruption Tolerant Network (DTN) differs from the conventional networks in that it has no continuous or contemporaneous connections among wireless nodes. Its inherent characteristic of intermittent connections makes existing routing solutions hardly to be applied directly. Epidemic routing using random linear network coding has been studied and proved as an efficient way for delivering small amount of data. To our best knowledge, we are the first to study high performance reliable transmission for bulk or stream-like data in DTNs. In this paper, we propose a dynamic segmented network coding scheme to efficiently exploit the transmission opportunity that is scarce in DTNs. In particular, we adopt a dynamic segment size control mechanism, which makes the segmentation adapt to the dynamics of the network. A lower bound of the expected delivery delay for bulk-data dissemination using segmented network coding is also derived. Both analytical and simulation results validate the high performance of our proposal. Several other interesting findings are also observed.
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ISSN:1045-9219
1558-2183
DOI:10.1109/TPDS.2013.221