NDLI: Compress-and-Forward Relaying Over Parallel Gaussian Channels

Content Provider	IEEE Xplore Digital Library
Author	Woohyuk Chang Kotagiri, S. Laneman, J.N. Sae-Young Chung Lee, Y.H.
Copyright Year	2007
Description	Author affiliation: Sch. of EECS, Korea Adv. Inst. of Sci. & Technol., Daejeon (Woohyuk Chang)
Abstract	We propose a compress-and-forward (CF) strategy for relaying over parallel Gaussian channels. The proposed CF strategy compresses received signals at the relay under a constraint on the product of their allowable distortions and forwards them to the destination over all subchannels. Then, power allocation over all subchannels at both the source and the relay and bit allocation for compressing received signals at the relay are jointly optimized under a total power constraint on each node. The proposed CF strategy is shown to generalize the previous CF strategy which compresses the received signal from the i-th. incoming subchannel and forwards it only through the i-th outgoing subchannel. We show if for a good incoming link at the relay, its corresponding outgoing link is also good enough, both CF strategies have similar performances. Otherwise, the gap between their performances becomes significant.
Starting Page	305
Ending Page	308
File Size	1291728
Page Count	4
File Format	PDF
ISBN	9781424417131
DOI	10.1109/CAMSAP.2007.4498026
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relay Channel capacity OFDM compress-and-forward Distortion Covariance matrix Relays parallel Gaussian channels Constraint optimization resource allocation Bit rate Land mobile radio cellular systems Resource management Gaussian channels
Content Type	Text
Resource Type	Article

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