Title :
Linear multiuser receiver using novel iterative algorithm for DS/CDMA systems
Author :
Li, Yue-heng ; Chen, Mmg ; Haifen, Wang ; Cheng, Shi-xin
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
Linear decorrelating and MMSE multiuser detectors need to compute the inverse of the correlation matrix. It is too complex for practical applications especially in multipath and asynchronous environments as the long spreading codes are used. An iterative algorithm based on successive over relaxation is proposed for the implementation of both decorrelating and MMSE detectors. In the proposed scheme neither correlation coefficients nor the inverse of the cross-correlation matrix need to be computed
Keywords :
code division multiple access; decorrelation; least mean squares methods; multipath channels; multiuser channels; radio receivers; spread spectrum communication; DS/CDMA systems; MMSE multiuser detector; asynchronous environment; inverse correlation matrix; iterative algorithm; linear decorrelating detector; linear multiuser receiver; long spreading codes; multipath environment; successive over relaxation; AWGN; Background noise; Decorrelation; Detectors; Frequency; Iterative algorithms; Mobile communication; Mobile handsets; Multiaccess communication; Phase detection;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851421
