Computer Science – Information Theory
Scientific paper
2011-10-25
European Transactions on Telecommunications, Volume 22, Issue 7, pages 396-406, November 2011
Computer Science
Information Theory
accepted and to appear in European Transactions on Telecommunications
Scientific paper
10.1002/ett.1492
We investigate joint network and channel coding schemes for networks when relay nodes are not capable of performing channel coding operations. Rather, channel encoding is performed at the source node while channel decoding is done only at the destination nodes. We examine three different decoding strategies: independent network-then-channel decoding, serial network and channel decoding, and joint network and channel decoding. Furthermore, we describe how to implement such joint network and channel decoding using iteratively decodable error correction codes. Using simple networks as a model, we derive achievable rate regions and use simulations to demonstrate the effectiveness of the three decoders.
Johnson Sarah J.
Kellett Christopher M.
Ong Lawrence
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