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Near Optimal Broadcast with Network Coding in Large Sensor Networks

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1
Cédric Adjih
Philippe Jacquet

Abstract

We study efficient broadcasting for wireless sensor networks, with network coding. We address this issue for homogeneous sensor networks in the plane. Our results are based on a simple principle (IREN/IRON), which sets the same rate on most of the nodes (wireless links) of the network. With this rate selection, we give a value of the maximum achievable broadcast rate of the source: our central result is a proof of the value of the min-cut for such networks, viewed as hypergraphs. Our metric for efficiency is the number of transmissions necessary to transmit one packet from the source to every destination: we show that IREN/IRON achieves near optimality for large networks; that is, asymptotically, nearly every transmission brings new information from the source to the receiver. As a consequence, network coding asymptotically outperforms any scheme that does not use network coding.
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Dates and versions

inria-00166617 , version 1 (07-08-2007)

Identifiers

  • HAL Id : inria-00166617 , version 1
  • ARXIV : 0708.0975

Cite

Cédric Adjih, Song Yean Cho, Philippe Jacquet. Near Optimal Broadcast with Network Coding in Large Sensor Networks. First International Workshop on Information Theory for Sensor Netwoks (WITS 2007), Jun 2007, Santa Fe, United States. ⟨inria-00166617⟩
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