Relaying simultaneous multicast messages

Document Type

Conference Proceeding

Publication Date

12-1-2009

Abstract

The problem of multicasting multiple messages with the help of a relay, which may also have an independent message of its own to multicast, is considered. As a first step to address this general model, referred to as the compound multiple access channel with a relay (cMACr), the capacity region of the multiple access channel with a "cognitive" relay is characterized, including the cases of partial and rate-limited cognition. Achievable rate regions for the cMACr model are then presented based on decode-and-forward (DF) and compress-andforward (CF) relaying strategies. Moreover, an outer bound is derived for the special case in which each transmitter has a direct link to one of the receivers while the connection to the other receiver is enabled only through the relay terminal. Numerical results for the Gaussian channel are also provided. © 2009 IEEE.

Identifier

77950652346 (Scopus)

ISBN

[9781424445363]

Publication Title

Proceedings 2009 IEEE Information Theory Workshop on Networking and Information Theory Itw 2009

External Full Text Location

https://doi.org/10.1109/ITWNIT.2009.5158539

First Page

47

Last Page

51

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