TY - GEN
T1 - Wireless multiuser relay networks in Nakagami-m fading channels
AU - Yang, Nan
AU - Elkashlan, Maged
AU - Yuan, Jinhong
PY - 2011
Y1 - 2011
N2 - We propose opportunistic scheduling with cooperative selection diversity (CSD) in wireless multiuser relay networks (MRN). In this policy, the destination with the highest instantaneous end-to-end signal-to-noise ratio (SNR), either directly from the source or indirectly through the relay, is scheduled for transmission. For the practical case of unbalanced Nakagami-m fading channels, we derive new exact closed-form expressions for the outage probability and the symbol error rate (SER) for amplify-and-forward (AaF) relaying. Next, we quantify the asymptotic network behavior in the low SER regime by presenting concise expressions for the diversity order and the array gain. We demonstrate that our two-step policy achieves the maximum diversity order. We further prove that both the diversity order and the array gain are jointly influenced by the direct link and the weaker hop of the relay link.
AB - We propose opportunistic scheduling with cooperative selection diversity (CSD) in wireless multiuser relay networks (MRN). In this policy, the destination with the highest instantaneous end-to-end signal-to-noise ratio (SNR), either directly from the source or indirectly through the relay, is scheduled for transmission. For the practical case of unbalanced Nakagami-m fading channels, we derive new exact closed-form expressions for the outage probability and the symbol error rate (SER) for amplify-and-forward (AaF) relaying. Next, we quantify the asymptotic network behavior in the low SER regime by presenting concise expressions for the diversity order and the array gain. We demonstrate that our two-step policy achieves the maximum diversity order. We further prove that both the diversity order and the array gain are jointly influenced by the direct link and the weaker hop of the relay link.
UR - http://www.scopus.com/inward/record.url?scp=83755172572&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2011.6092870
DO - 10.1109/VETECF.2011.6092870
M3 - Conference contribution
SN - 9781424483273
T3 - IEEE Vehicular Technology Conference
BT - 2011 IEEE Vehicular Technology Conference Fall, VTC Fall 2011 - Proceedings
T2 - IEEE 74th Vehicular Technology Conference, VTC Fall 2011
Y2 - 5 September 2011 through 8 September 2011
ER -