Sensitivity of Achievable Rates for Half-Duplex Relay Channel

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameIEEE Workshop on Signal Processing Advances in Wireless Communicationsen_US
dc.contributor.authorChakrabarti, Arnaben_US
dc.contributor.authorSabharwal, Ashutoshen_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:39:07Z
dc.date.available2007-10-31T00:39:07Z
dc.date.issued2005-06-01
dc.date.modified2005-05-01en_US
dc.date.note2005-04-29en_US
dc.date.submitted2005-06-01en_US
dc.descriptionConference Paperen_US
dc.description.abstractThis paper investigates the sensitivity of achievable rates for the half-duplex AWGN relay channel to the choice of modulation, receiving time fraction, and source-relay correlation. Our study is motivated by practical considerations that limit the choice of parameters in a real relay network. We show that BPSK modulation suffices to achieve much of the relaying throughput in the SNR range where relaying is most advantageous. We also show that smartly choosing either completely correlated or uncorrelated signals incurs negligible loss in rate compared to optimally correlated signals. Furthermore, the achievable rate is not diminished significantly if we use equal time slots for relay transmission and reception, instead of using the optimum time ratio. Finally, we demonstrate that even when time and correlation are both restricted, relaying with appropriate power control still carries substantial gains over direct and two-hop channels.en_US
dc.identifier.citationA. Chakrabarti, A. Sabharwal and B. Aazhang, "Sensitivity of Achievable Rates for Half-Duplex Relay Channel," 2005.
dc.identifier.urihttps://hdl.handle.net/1911/19777
dc.language.isoeng
dc.relation.projecthttp://www2.ece.rice.edu/~arnychak/research.htmen_US
dc.subjectSensitivity*
dc.subjectCapacity*
dc.subjectAchievable Rate*
dc.subjectHalf-Duplex Relay Channel*
dc.subjectCorrelation*
dc.subjectReceive/Transmit Time Fraction*
dc.subjectBPSK Modulation*
dc.subject.keywordSensitivityen_US
dc.subject.keywordCapacityen_US
dc.subject.keywordAchievable Rateen_US
dc.subject.keywordHalf-Duplex Relay Channelen_US
dc.subject.keywordCorrelationen_US
dc.subject.keywordReceive/Transmit Time Fractionen_US
dc.subject.keywordBPSK Modulationen_US
dc.titleSensitivity of Achievable Rates for Half-Duplex Relay Channelen_US
dc.typeConference paper
dc.type.dcmiText
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