Outage Minimization and Optimal Power Control for the Fading Relay Channel

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameIEEE Information Theory Workshopen_US
dc.citation.locationHoustonen_US
dc.contributor.authorAhmed, Nasiren_US
dc.contributor.authorKhojastepour, Mohammaden_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:33:56Z
dc.date.available2007-10-31T00:33:56Z
dc.date.issued2004-05-01
dc.date.modified2004-11-22en_US
dc.date.note2004-05-18en_US
dc.date.submitted2004-05-01en_US
dc.descriptionConference Paperen_US
dc.description.abstractIn this work, we show that in the wireless relay network, a tremendous savings in energy can be achieved by having side information at the transmitters and by employing power control. We present efficient protocols and the corresponding optimal power control policies that approach the universal lower bound on the outage probability of the block fading relay channel. Each of the proposed protocols have their own utility for specific channel conditions. However, a hybrid protocol between two known coding schemes is the best scheme for all channel conditions and is sufficient to approach the lower bound on outage probability. Unlike the single link channel, we show that exploiting the knowledge of the channel at the transmitters can significantly lower the outage even if the transmit powers at the source and relay have to be kept constant. In this case, it is also demonstrated that the lower bound on outage is closely followed by the outage probability of the hybrid protocol. Our results reveal that exploiting the right network protocol in conjunction with power control result in orders of magnitude savings in power over direct transmission for a target performance level.en_US
dc.identifier.citationN. Ahmed, M. Khojastepour and B. Aazhang, "Outage Minimization and Optimal Power Control for the Fading Relay Channel," 2004.
dc.identifier.urihttps://hdl.handle.net/1911/19668
dc.language.isoeng
dc.subjectFading*
dc.subjectRelay*
dc.subjectUser Cooperation*
dc.subjectPower Control*
dc.subject.keywordFadingen_US
dc.subject.keywordRelayen_US
dc.subject.keywordUser Cooperationen_US
dc.subject.keywordPower Controlen_US
dc.titleOutage Minimization and Optimal Power Control for the Fading Relay Channelen_US
dc.typeConference paper
dc.type.dcmiText
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