(1+/spl lambda/) evolution strategy method for asynchronous DS-CDMA multiuser detection

Author

Wang, Shaowei ; Zhu, Qiuping ; Kang, Lishan

Author_Institution

Sch. of Electron. Inf., Wuhan Univ.

Volume

10

Issue

6

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

423

Lastpage

425

Abstract

This letter introduces a new multiuser detection algorithm based on (1+lambda) evolution strategy for asynchronous DS-CDMA systems. By setting the offspring population size and the mutation probability appropriately, the new algorithm can approach the minimum probability of error with great computation efficiency. Simulation results show that the proposed algorithm converges very rapidly and provides good BER performance for cases where other suboptimum algorithms perform poorly. The average computation time is polynomial complexity in the number of users

Keywords

code division multiple access; error statistics; multiuser detection; spread spectrum communication; (1+lambda) evolution strategy; BER performance; asynchronous DS-CDMA system; bit error rate; direct-sequence code division multiple access; error probability; multiuser detection algorithm; polynomial complexity; AWGN; Binary phase shift keying; Bit error rate; Computational modeling; Detectors; Evolutionary computation; Genetic mutations; Multiaccess communication; Multiple access interference; Multiuser detection;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2006.1638603

Filename

1638603