Multiaccess Channels with State Known to One Encoder: Another Case of Degraded Message Sets

Details Multiaccess Channels with State Known to One Encoder: Another Case of Degraded Message Sets Multiaccess Channels with State Known to One Encoder: Another Case of Degraded Message Sets

2009-06-08

arxiv.org/abs/0906.1603v1

Computer Science

Information Theory

5 pages, Proc. of IEEE International Symposium on Information theory, ISIT 2009, Seoul, Korea

Scientific paper

We consider a two-user state-dependent multiaccess channel in which only one of the encoders is informed, non-causally, of the channel states. Two independent messages are transmitted: a common message transmitted by both the informed and uninformed encoders, and an individual message transmitted by only the uninformed encoder. We derive inner and outer bounds on the capacity region of this model in the discrete memoryless case as well as the Gaussian case. Further, we show that the bounds for the Gaussian case are tight in some special cases.

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