Adaptive Selection Combining Receiver over Time Varying Frequency Selective Fading Channel in Class-A Noise. (13th May 2013)

• Record Type: Journal Article
• Authors: El-Mahdy, Ahmed El-Sayed
• Other Names: Kalitzin S. Academic Editor.; Liu W. Academic Editor.
• Is Part Of: ISRN signal processing. Volume 2013(2013)
• Publication Date: 2013-05-13
• Subjects: Signal processing -- Periodicals; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2013/894542
• Languages: English
• ISSNs: 2090-5041

Abstract

Abstract : An adaptive selection combining (SC) scheme is proposed for time varying mobile communication channel in Class-A impulsive noise. The receiver adaptively selects a diversity branch out of the available branches and discards the others. This is performed by computing the maximum likelihood (ML) metric of each diversity branch and selects the branch with the maximum metric. The proposed adaptive SC scheme dynamically adjusts the threshold value according to the time variations of the channel. Equalization and data detection are performed after combining using maximum likelihood sequence estimation implemented by Viterbi algorithm (MLSE-VA). The minimum survivor technique is employed to reduce the complexity of the receiver.