Adaptive Selection Combining Receiver over Time Varying Frequency Selective Fading Channel in Class-A NoiseReport as inadecuate




Adaptive Selection Combining Receiver over Time Varying Frequency Selective Fading Channel in Class-A Noise - Download this document for free, or read online. Document in PDF available to download.

ISRN Signal ProcessingVolume 2013 2013, Article ID 894542, 6 pages

Research ArticleGerman University in Cairo, New Cairo City 11835, Egypt

Received 27 February 2013; Accepted 21 April 2013

Academic Editors: S. Kalitzin and W. Liu

Copyright © 2013 Ahmed El-Sayed El-Mahdy. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.





Author: Ahmed El-Sayed El-Mahdy

Source: https://www.hindawi.com/



DOWNLOAD PDF




Related documents