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Interference Decoding for Deterministic Channels (2011)
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BibTeX
@MISC{Bandemer11interferencedecoding,
author = {Bernd Bandemer and Abbas El Gamal},
title = {Interference Decoding for Deterministic Channels},
year = {2011}
}
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Abstract
An inner bound to the capacity region of a class of deterministic interference channels with three user pairs is presented. The key idea is to simultaneously decode the combined interference signal and the intended message at each receiver. It is shown that this interference-decoding inner bound is tight under certain strong interference conditions. The inner bound is also shown to strictly contain the inner bound obtained by treating interference as noise, which includes interference alignment for deterministic channels. The gain comes from judicious analysis of the number of combined interference sequences in different regimes of input distributions and message rates. Finally, the inner bound is generalized to the case where each channel output is observed through a noisy channel.
Keyphrases
inner bound deterministic channel interference alignment deterministic interference channel channel output message rate different regime intended message key idea capacity region noisy channel combined interference sequence user pair interference-decoding inner bound input distribution combined interference signal certain strong interference condition judicious analysis
