Title :
Semi-blind MMSE detection for downlink MIMO-OFDM-CDMA systems
Author :
Luo, Zhendong ; Liu, Junshi ; Zhao, Ming ; Tang, Bihua ; Liu, Yuanan
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
In this paper, a semi-blind minimum mean square error (MMSE) detection algorithm is proposed for the downlink multiple-input multiple-output orthogonal frequency division multiplexing code division multiple access (MIMO-OFDM-CDMA) systems. Compared with the optimal MMSE detection algorithm, the proposed algorithm has only a small performance loss, and does not significantly increase the computational complexity, although it successfully avoids sending any user information from base station to mobile user.
Keywords :
MIMO systems; OFDM modulation; code division multiple access; least mean squares methods; mobile radio; radio links; MIMO-OFDM-CDMA systems; code division multiple access; minimum mean square error; multiple-input multiple-output; orthogonal frequency division multiplexing; semiblind MMSE detection; Base stations; Computational complexity; Detection algorithms; Downlink; MIMO; Mean square error methods; Mobile computing; Multiaccess communication; OFDM; Performance loss;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1566910
