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 |
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.