Compound relay channel with informed relay and destination

Document Type

Conference Proceeding

Publication Date

12-1-2009

Abstract

A two-state compound relay channel is considered where the relay and the destination are informed about the channel state while the source is not. Achievable rates and upper bounds are derived for discrete memoryless and Gaussian models, and specialized to a scenario with orthogonal components. It is shown that, apart from some special cases, optimality conditions valid for decode-and-forward (DF)-based solutions on a standard relay channel do not carry over to a compound setting, and more fl exible transmission strategies are generally advantageous. For instance, partial decode-and-forward (PDF) that superimposes transmission of three layers and uses joint decoding at the destination performs better than the standard two-layer PDF with successive decoding, even when the latter is optimal for the regular relay channel. Moreover, the capacity is derived in the special case in which the relay is not active in one state. Extension to the broadcast coding approach, as an alternative to the compound model, is also discussed. ©2009 IEEE.

Identifier

77949576074 (Scopus)

ISBN

[9781424458714]

Publication Title

2009 47th Annual Allerton Conference on Communication Control and Computing Allerton 2009

External Full Text Location

https://doi.org/10.1109/ALLERTON.2009.5394926

First Page

692

Last Page

699

Grant

0914899

Fund Ref

National Science Foundation

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