On Achievable Rate Regions for Half-Duplex Causal Cognitive Radio Channels

Details On Achievable Rate Regions for Half-Duplex Causal Cognitive Radio Channels On Achievable Rate Regions for Half-Duplex Causal Cognitive Radio Channels

2010-06-04

arxiv.org/abs/1006.0964v1

Computer Science

Information Theory

5 pages, 2 figures, ISIT 2010

Scientific paper

Coding for the causal cognitive radio channel, with the cognitive source subjected to a half-duplex constraint, is studied. A discrete memoryless channel model incorporating the half-duplex constraint is presented, and a new achievable rate region is derived for this channel. It is proved that this rate region contains the previously known causal achievable rate region of \cite{Devroye06} for Gaussian channels.

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