2007Unpublished venueRequires access

Generating functional analysis of CDMA soft-decision multiuser detector

Kazushi Mimura, Masato Okada

Open publisher page 3 citations

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.

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What this paper is about

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.

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Available 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.

Key concepts: Additive white Gaussian noise, Multiuser detection, Detector, Computer science, Code division multiple access, Interference (communication), Channel (broadcasting), Limit (mathematics)

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