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

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.

• Periodical: Advanced Engineering Forum (Volume 4)
• Pages: 43-50
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.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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