MAI cancellation by optimum single-user detection for DS/CDMA systems using random binary codes

Author

Patel, Naresh R. ; Farrell, Timothy O.

Author_Institution

Dept. of Electron. & Electr. Eng., Leeds Univ., UK

fYear

1998

fDate

9-12 Aug 1998

Firstpage

177

Lastpage

180

Abstract

The optimum single-user detector (OSD) for a DS/CDMA based communications system is investigated using random binary signature codes of length 32 and 64 chips. The BER performances are obtained by Monte-Carlo simulation for spectral efficiencies of 50% and 100%. Results show that the OSD performs significantly better than the matched filter detector (MFD) with a modest increase in complexity. It is also seen that noise enhancement is induced due to MAI cancellation which degrades the OSD performance

Keywords

AWGN; Monte Carlo methods; binary codes; code division multiple access; digital simulation; error statistics; interference suppression; multiuser channels; radiofrequency interference; random codes; signal detection; spread spectrum communication; AWGN; BER performance; DS/CDMA systems; MAI cancellation; Monte-Carlo simulation; code length; complexity; matched filter detector; multiple access interference; noise enhancement; optimum single-user detection; random binary signature codes; spectral efficiencies; AWGN; Additive white noise; Autocorrelation; Binary codes; Bit error rate; Detectors; Gaussian noise; Matched filters; Multiaccess communication; Multiple access interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1998. RAWCON 98. 1998 IEEE

Conference_Location

Colorado Springs, CO

Print_ISBN

0-7803-4988-1

Type

conf

DOI

10.1109/RAWCON.1998.709165

Filename

709165