The Binary-Symmetric Parallel-Relay Network

Lawrence Ong; Sarah J. Johnson; Christopher M. Kellett

doi:10.1109/isit.2010.5513571

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arXiv · 1004.2303

The Binary-Symmetric Parallel-Relay Network

Lawrence Ong·Sarah J. Johnson·Christopher M. Kellett

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Abstract

We present capacity results of the binary-symmetric parallel-relay network, where there is one source, one destination, and K relays in parallel. We show that forwarding relays, where the relays merely transmit their received signals, achieve the capacity in two ways: with coded transmission at the source and a finite number of relays, or uncoded transmission at the source and a sufficiently large number of relays. On the other hand, decoding relays, where the relays decode the source message, re-encode, and forward it to the destination, achieve the capacity when the number of relays is small.

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Lawrence Ong, Sarah J. Johnson, Christopher M. Kellett. 2010-04-14. The Binary-Symmetric Parallel-Relay Network. https://doi.org/10.1109/isit.2010.5513571

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