TY - GEN
T1 - Bandwidth efficient cooperative diversity for wireless networks
AU - Zhang, Wei
AU - Letaief, Khaled Ben
PY - 2007
Y1 - 2007
N2 - Cooperative diversity has been recently proposed as a way to form distributed antenna arrays that improve error performance and capacity. In this paper, a bandwidth efficient cooperative diversity scheme is proposed for half-duplex amplify-and-forward wireless relay networks. By employing a signal space diversity technique and allowing the source node to keep on transmitting over the whole duration of the cooperation frame, the proposed cooperative scheme is proved to be able to achieve both full-rate and full-diversity simultaneously. Diversity analysis shows that the achievable diversity gain is M + 1, where M is the number of relay nodes. Moreover, a power allocation scheme is proposed to maximize the coding gain under a total power constraint. Simulation results are shown to demonstrate the full-rate and full-diversity of the proposed scheme.
AB - Cooperative diversity has been recently proposed as a way to form distributed antenna arrays that improve error performance and capacity. In this paper, a bandwidth efficient cooperative diversity scheme is proposed for half-duplex amplify-and-forward wireless relay networks. By employing a signal space diversity technique and allowing the source node to keep on transmitting over the whole duration of the cooperation frame, the proposed cooperative scheme is proved to be able to achieve both full-rate and full-diversity simultaneously. Diversity analysis shows that the achievable diversity gain is M + 1, where M is the number of relay nodes. Moreover, a power allocation scheme is proposed to maximize the coding gain under a total power constraint. Simulation results are shown to demonstrate the full-rate and full-diversity of the proposed scheme.
KW - Cooperative diversity
KW - Diversity technique
KW - Multipath channels
KW - Relay channels
KW - Space-frequency coding
UR - https://openalex.org/W2148749751
UR - https://www.scopus.com/pages/publications/39349096728
U2 - 10.1109/GLOCOM.2007.557
DO - 10.1109/GLOCOM.2007.557
M3 - Conference Paper published in a book
SN - 1424410436
SN - 9781424410439
T3 - GLOBECOM - IEEE Global Telecommunications Conference
SP - 2942
EP - 2946
BT - IEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
T2 - 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Y2 - 26 November 2007 through 30 November 2007
ER -