Truncated maximal ratio combining for iterative multiuser decoding

Author

Lin, Tao ; Rasmussen, Lars K.

Author_Institution

Inst. of Telecommun. Res., South Australia Univ., The Levels, SA

fYear

2005

fDate

2-4 Feb. 2005

Firstpage

35

Lastpage

41

Abstract

In this paper, the concept of information combining is investigated for iterative multiuser decoding. This is done by applying recursive maximal ratio combining (MRC) over iterations to interference cancellation based multiuser detectors. Here, we show that combining over all iterations may not be appropriate as correlations build up. Numerical results show that applying MRC only over the first few iterations can improve the bit error rate performance with only a modest increase in complexity, as compared to no combining

Keywords

computational complexity; error statistics; interference suppression; iterative decoding; multiuser detection; interference cancellation; iterative multiuser decoding; multiuser detectors; truncated maximal ratio combining; Detectors; Diversity reception; EMP radiation effects; Error analysis; Error correction; Interference cancellation; Iterative decoding; Multiaccess communication; Signal to noise ratio; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Theory Workshop, 2005. Proceedings. 6th Australian

Conference_Location

Brisbane, Qld.

Print_ISBN

0-7803-9007-5

Type

conf

DOI

10.1109/AUSCTW.2005.1624223

Filename

1624223