Generating functional analysis of CDMA soft-decision multiuser detector

Author

Mimura, Kazushi ; Okada, Masayuki

Author_Institution

Fac. of Inf. Sci., Hiroshima City Univ, Hiroshima

fYear

2007

fDate

24-29 June 2007

Firstpage

2076

Lastpage

2080

Abstract

We investigate detection dynamics of a soft parallel interference canceller (soft-PIC), which includes a hard PIC as a special case, for CDMA multiuser detection, applied to a randomly spread, fully synchronous base-band uncoded CDMA channel model with additive white Gaussian noise (AWGN) under perfect power control in the large-system limit. We analyze the detection dynamics of the soft-PIC and the belief-propagation-based detector by the generating functional analysis (GFA). The GFA allows us to study the dynamics of infinitely large disordered system in an exact way.

Keywords

AWGN; code division multiple access; functional analysis; interference suppression; multiuser detection; AWGN; CDMA channel model; CDMA soft-decision multiuser detector; additive white Gaussian noise; belief-propagation-based detector; generating functional analysis; soft parallel interference canceller; AWGN; Computer simulation; Detectors; Functional analysis; Gaussian noise; Interference cancellation; Iterative algorithms; Multiaccess communication; Multiuser detection; Power control;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2007. ISIT 2007. IEEE International Symposium on

Conference_Location

Nice

Print_ISBN

978-1-4244-1397-3

Type

conf

DOI

10.1109/ISIT.2007.4557159

Filename

4557159