An adaptive beamforming algorithm for MC-CDMA systems with antenna array

被引:0
作者
Kim, CK [1 ]
Cho, YS
机构
[1] Elect & Telecommun Res Inst, Radio & Broadcasting Res Lab, Taejon 305350, South Korea
[2] Chung Ang Univ, Dept Elect & Elect Engn, Seoul 156756, South Korea
关键词
MC-CDMA; adaptive beamforming;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter presents an adaptive beamforming algorithm for an MC-CDMA system with adaptive antenna array The proposed adaptive beamforming algorithm for the MC-CDMA systems is derived by (1) calculating the error signals between the pilot symbols of desired user and the received pilot signals in the frequency-domain, (2) transforming the frequency-domain error signals into time-domain error signals, (3) updating the filter coefficients of the adaptive beamformer in the direction of minimizing the MSE. Convergence behavior and user-capacity improvement of the proposed approach are demonstrated through computer simulation by applying it to the MC-CDMA system in the presence of interferences from other users.
引用
收藏
页码:2712 / 2716
页数:5
相关论文
共 6 条
[1]  
Cimini LJ, 1997, GLOB TELECOMM CONF, P305, DOI 10.1109/GLOCOM.1997.632559
[2]   An LMS array for CDMA wireless communication systems [J].
Fruth, F ;
Geraniotis, E .
8TH IEEE SIGNAL PROCESSING WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING, PROCEEDINGS, 1996, :525-528
[3]  
Kim CK, 2000, IEICE T COMMUN, VE83B, P84
[4]   Adaptive antenna arrays for OFDM systems with cochannel interference [J].
Li, Y ;
Sollenberger, NR .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (02) :217-229
[5]   Performance of wireless CDMA with M-ary orthogonal modulation and cell site antenna arrays [J].
Naguib, AF ;
Paulraj, A .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1996, 14 (09) :1770-1783
[6]  
YEE N, 1993, P IEEE INT S PERS IN, P109