Performance Comparisons of Relaying Schemes in Bi-directional Demodulate-and-Forward Channels

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dc.contributor.authorÖzdemir, Özgür
dc.contributor.authorYılmaz, Ali Özgür
dc.contributor.authorAktaş, Emre
dc.date.accessioned2020-03-26T18:31:00Z
dc.date.available2020-03-26T18:31:00Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesien_US
dc.descriptionIEEE Wireless Communications and Networking Conference (WCNC) -- APR 01-04, 2012 -- Paris, FRANCEen_US
dc.description.abstractBi-directional relaying (BDR) in which two users wish to exchange independent information in presence of a relay is one of the fundamental wireless network coding applications that attracted intense interests recently. In this paper, maximum likelihood (ML), cooperative maximal ratio combining (CMRC) and soft information relaying (SIR) schemes proposed to combat error propagation in wireless relay systems are applied to the BDR scenario with demodulate-and-forward protocol, which decreases system complexity and cost by removing the decoding process at the relay terminal. Simulation results for Rayleigh fading channels show that detection schemes using ML and CMRC techniques outperform the noncooperative system that involves direct transmissions between user terminals and overcome the diversity gain reduction due to error propagation for different levels of channel state information (CSI). In case of SIR based communication scenario, the diversity gain is contingent on the availability of a coefficient depending on instantaneous CSI.en_US
dc.description.sponsorshipIEEEen_US
dc.identifier.endpage2944en_US
dc.identifier.isbn978-1-4673-0437-5; 978-1-4673-0436-8
dc.identifier.issn1525-3511en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage2940en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/28292
dc.identifier.wosWOS:000324580703008en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.ispartof2012 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)en_US
dc.relation.ispartofseriesIEEE Wireless Communications and Networking Conference
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectBi-directional relayingen_US
dc.subjectdemodulate-and-forwarden_US
dc.subjectmaximum likelihood detectionen_US
dc.subjectcooperative maximal ratio combiningen_US
dc.subjectsoft information relayingen_US
dc.titlePerformance Comparisons of Relaying Schemes in Bi-directional Demodulate-and-Forward Channelsen_US
dc.typeConference Objecten_US

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