Minimum probability of error-based adaptive multiuser decision feedback detection

Author

Wang, Yuhang ; Zhang, Xian-Da ; Huang, He

Author_Institution

Dept. of Autom., Tsinghua Univ., Beijing, China

Volume

13

Issue

5

fYear

2006

fDate

5/1/2006 12:00:00 AM

Firstpage

257

Lastpage

260

Abstract

For synchronous direct-sequence code-division multiple access (DS-CDMA) systems, a new criterion based on minimum probability of error (MPE) is proposed for designing decision feedback detectors (DFDs) instead of the conventional minimum mean-squared error criterion. The MPE criterion-based DFD (MPEDFD) tries to minimize the average/conditional probability of error adaptively. Study of bit-error rate and convergence performance shows that the MPEDFDs work pretty well after a short training sequence. Moreover, the modified MPEDFD is applicable for the asynchronous DS-CDMA systems with multipath.

Keywords

code division multiple access; error statistics; multipath channels; multiuser detection; spread spectrum communication; DFD; MPE; adaptive multiuser detection; asynchronous DS-CDMA system; average-conditional probability; bit-error rate; convergence performance; decision feedback detector; direct-sequence code-division multiple access; minimization; minimum probability of error; Bit error rate; Convergence; Design for disassembly; Detectors; Direct-sequence code-division multiple access; Feedback; Matched filters; Multiaccess communication; Multiuser detection; Object detection; Decision feedback; minimum probability of error (MPE); multiuser detection;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2006.870375

Filename

1618691