Title :
Generating functional analysis of CDMA soft-decision multiuser detector
Author :
Mimura, Kazushi ; Okada, Masayuki
Author_Institution :
Fac. of Inf. Sci., Hiroshima City Univ, Hiroshima
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;
Conference_Titel :
Information Theory, 2007. ISIT 2007. IEEE International Symposium on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-1397-3
DOI :
10.1109/ISIT.2007.4557159
