Title :
Performance analysis of space-time MMSE detection in synchronous multiuser DS-CDMA
Author :
Hamouda, Walaa A. ; McLane, Peter J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
Abstract :
For multiuser data signals the minimum-mean-square-error (MMSE) estimation using an array of antennas is analyzed for binary, synchronous direct sequence code division multiple access (DS-CDMA) systems. The receiver consists of an array of beamformers followed by a bank of matched filters and the MMSE multiuser detector (MUD). The performance of the space-time MMSE is investigated over both the additive white Gaussian noise (AWGN) channel, and the flat Rayleigh fading channel. Digital computer simulations are used in the paper to confirm the validity of the approximations used in the analysis to determine the system bit error rate
Keywords :
AWGN channels; Rayleigh channels; adaptive signal detection; antenna arrays; array signal processing; channel bank filters; code division multiple access; error statistics; filtering theory; least mean squares methods; linear antenna arrays; matched filters; multiuser channels; spread spectrum communication; AWGN channel; BER; MMSE multiuser detector; adaptive antenna array; additive white Gaussian noise channel; approximations; beamformer array; binary DS-CDMA systems; bit error rate; digital computer simulations; direct sequence code division multiple access; flat Rayleigh fading channel; matched filter banks; minimum-mean-square-error estimation; multiuser data signals; performance analysis; receiver; space-time MMSE detection; synchronous multiuser DS-CDMA; uniform linear array; AWGN; Additive white noise; Antenna arrays; Direct-sequence code-division multiple access; Matched filters; Multiaccess communication; Multiuser detection; Performance analysis; Sensor arrays; Signal analysis;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on
Conference_Location :
Parsippany, NJ
Print_ISBN :
0-7803-6560-7
DOI :
10.1109/ISSSTA.2000.878070
