A comprehensive study of repetition-coded protocols in multi-user multi-relay networks
2009 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 8, no 8, 4329-4339 p.Article in journal (Refereed) Published
The diversity-multiplexing tradeoff (DMT) performances of novel decode-and-forward (DF) relaying protocols for multi-source multi-relay cooperative networks are studied in this paper. For a strong-interference scenario and an isolated-relay scenario, the proposed protocols significantly improve diversity performance over direct source-destination transmissions by using a simple repetition coding strategy in relays. This is in addition to enhancing the multiplexing performance over standard DF protocols, which usually suffer from the half-duplex limitation at relays. Although the DMT performance of DF based relaying protocols is limited by the quality of source-relay links in principle, adaptive forms of the proposed protocols at the relays can transmit/not transmit according to source-relay transmissions and still provide link reliability and spectral efficiency advantages in general source-relay channel conditions.
Place, publisher, year, edition, pages
2009. Vol. 8, no 8, 4329-4339 p.
Cooperative diversity, diversity-multiplexing tradeoff (DMT), repetition coding
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-52468DOI: 10.1109/TWC.2009.081265ISI: 000268934200050OAI: oai:DiVA.org:kth-52468DiVA: diva2:466927
QC 201201092011-12-172011-12-172012-01-09Bibliographically approved