Gaussian interference channel aided by a relay with out-of-band reception and in-band transmission

Document Type

Article

Publication Date

11-1-2011

Abstract

A Gaussian Interference Channel (IC) is investigated in which a relay assists two source-destination pairs. The relay is assumed to receive over dedicated orthogonal channels from the sources (e.g., over orthogonal bands or time slots, or over wired links), while it transmits in the same band as the sources. This scenario is referred to as IC assisted by an out-of-band reception/ in-band transmission relay (IC-OIR). An achievable rate region is derived for the IC-OIR that encompasses, besides the standard signal relaying, interference management via interference relaying, cancellation and precoding. The sum-capacity is found in a specific regime defined by the very strong relay-interference conditions. Numerical results validate the performance gains of interference mitigation via the relay. © 2011 IEEE.

Identifier

82455162653 (Scopus)

Publication Title

IEEE Transactions on Communications

External Full Text Location

https://doi.org/10.1109/TCOMM.2011.091409.090260

ISSN

00906778

First Page

2976

Last Page

2981

Issue

11

Volume

59

Grant

CCF-0914899

Fund Ref

National Science Foundation

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