Paper Title:

Robust Multiuser Detection in Synchronous DS-CDMA System with MRC Receive Diversity over Nakagami-m Fading Channel

Periodical Advanced Engineering Forum OPEN ACCESS (Volume 4)
Main Theme Smart Technologies for Communication
Edited by Tianharry Chang
Pages 43-50
DOI 10.4028/www.scientific.net/AEF.4.43
Citation Rao V. Srinivasa et al., 2012, Advanced Engineering Forum OPEN ACCESS, 4, 43
Online since June, 2012
Authors Rao V. Srinivasa, Kumar P. Vinay, S. Balaji, Khan Habibulla, Kumar T. Anil
Keywords Influence Function, Maximal Ratio Combiner, M-Estimator, Nakagami-m Distribution, Probability of Error
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Abstract

This paper presents the robust multiuser detection in synchronous direct sequence-code division multiple access (DS-CDMA) systems with Maximal Ratio Combiner (MRC) receive diversity over frequency-nonselective, slowly fading Nakagami-m channels in a non-Gaussian environment. Average probability of error is derived for decorrelating detector over single path Nakagami-m fading channel. A new M-estimator proposed to robustify the detector is studied and analyzed. Simulation results show that the new M-estimator outperforms linear decorrelating detector, the Huber, and the Hampel estimator based detectors.