Approaching the Optimal Diversity-Multiplexing Tradeoff in a Four-node Cooperative Network
2010 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 9, no 12, 3690-3700 p.Article in journal (Refereed) Published
A novel cooperative diversity transmission protocol is proposed for a four-node network, in which a single-antenna source communicates with an N-antenna destination with the help of two K-antenna half-duplex decode-and-forward (DF) relays. The proposed shifted successive DF relaying (SSDFR) protocol asymptotically achieves the optimal diversity-multiplexing tradeoff (DMT) the system can provide. The resulting DMT performance does not require complex coding strategies at the relays, extremely strong or weak inter-relay channel conditions, or feedback from the destination to the source, which highlights the advantages of the proposed protocol over state of the art techniques.
Place, publisher, year, edition, pages
IEEE Communications Society , 2010. Vol. 9, no 12, 3690-3700 p.
Cooperative diversity, diversity-multiplexing tradeoff (DMT), repetition coding
IdentifiersURN: urn:nbn:se:kth:diva-39367DOI: 10.1109/TWC.2010.101310.091396ISI: 000285244300012ScopusID: 2-s2.0-78650204313OAI: oai:DiVA.org:kth-39367DiVA: diva2:439806
QC 201109092011-09-092011-09-092011-12-28Bibliographically approved