Performance analysis of an adaptive two-stage partial PIC receiver

Yu T. Hsieh*, Wen-Rong Wu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Partial parallel-interference-cancelation (PIC) is a well-known multiuser detection technique for DS/CMDA systems. Conventionally, partial-cancelation- factors (PCFs) are optimally derived and kept constant in a designated interval. Recently, a special kind of partial PIC was proposed. In the approach, PCFs are adaptively trained (chip-by-chip) using the least-mean-square (LMS) algorithm, and PCFs are updated with a bit-by-bit fashion. It has been shown that the adaptive partial PIC detector outperforms conventional partial PIC. Despite its good performance, performance analysis of the approach has not been explored yet. This paper is aimed to fill the gap by conducting the performance analysis of an adaptive two-stage partial PIC detector. We first analyze optimal weights (i.e., PCFs), weight error means, and weight error variances. Based on these results, we derive the output mean-squared-error (MSE) and bit-error-rate (BER) for each user. Simulation results indicates that our analytical results highly agree with empirical ones.

Original languageEnglish
Title of host publication2007 16th IST Mobile and Wireless Communications Summit
DOIs
StatePublished - 1 Dec 2007
Event2007 16th IST Mobile and Wireless Communications Summit - Budapest, Hungary
Duration: 1 Jul 20075 Jul 2007

Publication series

Name2007 16th IST Mobile and Wireless Communications Summit

Conference

Conference2007 16th IST Mobile and Wireless Communications Summit
CountryHungary
CityBudapest
Period1/07/075/07/07

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