Title :
Analysis on Effective SNR Loss of Space-Time Block Coded MIMO System with Channel Estimation Error
Author :
Wang, Chun ; Zhang, Lin-rang
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
Channel estimation error impacts the performance of practical orthogonal space-time block coded (OSTBC) MIMO system. The effective SNR loss is caused by the impact of imperfect channel knowledge. In this paper, we qualitatively analyze on the effective SNR loss, and derive a symbol error rate (SER) expression for PSK modulation scheme in MIMO Rayleigh channel with channel estimation error. However, theoretical analysis show that the sensitivity of MIMO system to channel estimation error increases as the number of receiver antennas increases. Simulation results are furnished to demonstrate the effectiveness of the proposed analysis.
Keywords :
MIMO communication; Rayleigh channels; antenna arrays; block codes; channel estimation; space-time codes; MIMO Rayleigh channel; PSK modulation scheme; SNR loss; channel estimation error; receiver antennas; space-time block coded MIMO system; symbol error rate; Channel estimation; Decoding; Error analysis; Estimation error; Ice; MIMO; Phase shift keying; Radar signal processing; Receiving antennas; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5304668
