TY - GEN
T1 - Reliability analysis of combing space-time block codes and opportunistic scheduling in MIMO Rayleigh channels with channel estimation error
AU - Wu, Huaming
AU - Su, Yanyong
PY - 2011
Y1 - 2011
N2 - In order to utilize the multiuser diversity (MUD) efficiently in multiuser MIMO systems, a scheme that combing space-time block codes and opportunistic scheduling (OS) was presented, where the user with the largest throughput was adaptively selected according to channel state information (CSI) feedback from the receive side, and the impact of channel estimation error on the reliability was investigated. Firstly, we derived both exact closed-forms and approximate expressions of the outage probability and BER for M-ary QAM and PSK modulations. Then, the diversity order was quantified through asymptotic analysis and ratio of diversity gain was compared between perfect and imperfect CSI cases. Finally, the corresponding simulation results indicated that the reliability of this scheme was improved by MUD and the loss of diversity gain was caused by channel estimation error.
AB - In order to utilize the multiuser diversity (MUD) efficiently in multiuser MIMO systems, a scheme that combing space-time block codes and opportunistic scheduling (OS) was presented, where the user with the largest throughput was adaptively selected according to channel state information (CSI) feedback from the receive side, and the impact of channel estimation error on the reliability was investigated. Firstly, we derived both exact closed-forms and approximate expressions of the outage probability and BER for M-ary QAM and PSK modulations. Then, the diversity order was quantified through asymptotic analysis and ratio of diversity gain was compared between perfect and imperfect CSI cases. Finally, the corresponding simulation results indicated that the reliability of this scheme was improved by MUD and the loss of diversity gain was caused by channel estimation error.
KW - Channel estimation error
KW - Multiple-input multiple-output (MIMO)
KW - Multiuser diversity (MUD)
KW - Opportunistic scheduling (OS)
KW - Space- time block codes (STBC)
UR - https://www.scopus.com/pages/publications/80054924618
U2 - 10.1109/wicom.2011.6040073
DO - 10.1109/wicom.2011.6040073
M3 - 会议稿件
AN - SCOPUS:80054924618
SN - 9781424462520
T3 - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
BT - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
T2 - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
Y2 - 23 September 2011 through 25 September 2011
ER -