Performance of iterative multiuser decision-feedback receivers

Author

Honig, Michael L. ; Sun, Yakun

Author_Institution

Dept. of ECE, Northwestern Univ., Evanston, IL, USA

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

30

Lastpage

32

Abstract

We compare the performance of iterative multi-user successive and parallel decision feedback detectors (DFDs) for code-division multiple access (CDMA). An adaptive successive-DFD (S-DFD) is first presented, which requires only a training sequence and associated timing to estimate all filter coefficients. Simulation results show that with limited training, the adaptive S-DFD performs significantly better than the adaptive parallel-DFD (P-DFD). A large system analysis of error rate for non-adaptive iterative DFDs is also presented, and shows that the S-DFD converges with fewer iterations than the P-DFD

Keywords

adaptive signal detection; code division multiple access; decision feedback equalisers; interference suppression; iterative decoding; multiuser channels; CDMA; adaptive P-DFD; adaptive S-DFD; associated timing; code division multiple access; error rate; filter coefficients; iterative multiuser decision-feedback receivers; nonadaptive iterative DFD; parallel decision feedback detectors; simulation results; successive decision feedback detectors; training sequence; Adaptive filters; Design for disassembly; Detectors; Error analysis; Feedback; Interference cancellation; Iterative decoding; Multiaccess communication; Sun; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory Workshop, 2001. Proceedings. 2001 IEEE

Conference_Location

Cairns, Qld.

Print_ISBN

0-7803-7119-4

Type

conf

DOI

10.1109/ITW.2001.955126

Filename

955126