Title :
Performance analysis of MQAM for MIMO WCDMA systems in fading channels
Author :
Xu, Fuyong ; Li, Guangqiu
Author_Institution :
Sch. of Commun. Eng., Hangzhou Dianzi Univ., China
Abstract :
The paper presents closed-form formulas for the exact average symbol error rate (ASER) of MQAM for multiple-input-multiple-output (MIMO) WCDMA systems in Nakagami-m fading channels with multiple access interference (MAI), using the moment generating function (MGF)-based analysis method and alternative representation of Q2(x). The analytical framework developed can handle an arbitrary number of transmit and receive antennas in both open-loop and closed-loop systems. Numerical results show that the system can achieve significant performance improvement by using the combined transmit and receive antenna diversity.
Keywords :
MIMO systems; code division multiple access; diversity reception; error statistics; fading channels; quadrature amplitude modulation; radiofrequency interference; receiving antennas; transmitting antennas; MAI; MIMO WCDMA systems; MQAM; Nakagami-m fading channels; QAM; average symbol error rate; closed-form formulas; closed-loop systems; moment generating function; multiple access interference; multiple-input-multiple-output systems; open-loop systems; receive antenna diversity; transmit antenna diversity; Error analysis; Fading; MIMO; Multiaccess communication; Multiple access interference; Performance analysis; Rayleigh channels; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1493394
