On the DMT-Optimality of Nondynamic DF Relaying in Asymmetric Nakagami Fading Channels
2010 (English)In: IEEE Transactions on Information Theory, ISSN 0018-9448, Vol. 56, no 7, 3304-3309 p.Article in journal (Refereed) Published
The optimality of nondynamic DF relaying over a general three-node Nakagami fading channel in terms of the diversity-multiplexing tradeoff (DMT) is established. In particular, when the fading of the relay-source link is less severe than that of the relay-destination link, both orthogonal and nonorthogonal DF protocols are shown to be DMT-optimal over certain ranges of the multiplexing gains. It is also shown that when the multiplexing gains are sufficiently high, the DMT of the DF protocols is completely independent of the statistical properties of the relay-destination link.
Place, publisher, year, edition, pages
2010. Vol. 56, no 7, 3304-3309 p.
Cooperative communications, diversity methods, fading channels, Nakagami-m distribution, relay channels
IdentifiersURN: urn:nbn:se:kth:diva-27300DOI: 10.1109/TIT.2010.2048469ISI: 000278812000022ScopusID: 2-s2.0-77953758440OAI: oai:DiVA.org:kth-27300DiVA: diva2:376697
FunderSwedish Research Council
QC 201012132010-12-132010-12-092011-12-14Bibliographically approved