Perceptron-based CDMA receiver in non-Gaussian noise

B. S. Sharif, T. C. Chuah, O. R. Hinton, S. A. Jimaa

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


Linear adaptive interference suppression is an effective approach in mitigating Multiple Access Interference (MAI) in CDMA communications channels under Gaussian noise. However, applying Gaussian-based linear receivers to realistic communications channels affected by impulsive noise can result in performance degradation and is therefore a suboptimal solution. The linear adaptive receiver is limited by its structural formulation as a simple linear combiner with a hyperplanar decision boundary that is unable to form arbitrarily non-linear boundaries inherent in CDMA communications, particularly under hostile channel conditions. In this paper, we consider the use of a multilayer perceptron (MLP) for robust single-user detection in multiuser non-Gaussian channels; the receiver is trained via the hack-propagation (BP) algorithm using a known training sequence. Theoretical arguments supported by simulation suggest that the perceptron-based receiver, which combines the basic attributes of nonlinearity, adaptivity and non-parametric approach, shows promise as a near-far resistant receiver in non-Gaussian environments.

Original languageBritish English
Title of host publicationICECS 2003 - Proceedings of the 2003 10th IEEE International Conference on Electronics, Circuits and Systems
Number of pages4
StatePublished - 2003
Event2003 10th IEEE International Conference on Electronics, Circuits and Systems, ICECS2003 - Sharjah, United Arab Emirates
Duration: 14 Dec 200317 Dec 2003

Publication series

NameProceedings of the IEEE International Conference on Electronics, Circuits, and Systems


Conference2003 10th IEEE International Conference on Electronics, Circuits and Systems, ICECS2003
Country/TerritoryUnited Arab Emirates


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