Authors: Shunwai Zhang Fengfan Yang Lei Tang B T Maharaj
Publish Date: 2013/04/18
Volume: 72, Issue: 4, Pages: 2685-2703
Abstract
This paper studies a coded cooperation scheme with receive multiantenna in the destination A kind of simpleencoding irregular systematic lowdensityparitycheck LDPC codes is applied to the scheme For Rayleigh block fading channels in the unknown channel state information scenario spacebased adaptive leastmean square LMS transversal filters are adopted in the destination to realize receive diversity gain The filtered signals from the source and relay are decoded by a joint “MinSum” iterative decoding algorithm This algorithm agrees with the bilayer Tanner graph that can be used to fully characterize two distinct irregular systematic LDPC codes employed by the source and relay Simulation results verify the effectiveness of the spacebased adaptive LMS transversal filters in the coded cooperation scheme Meanwhile theoretical analysis and numerical simulation show that the proposed coded cooperation scheme can well combine cooperation diversity multireceive diversity and channel coding gains and clearly outperforms the coded noncooperation one under the same conditionsThis paper is supported by the Science and Technology on Avionics Integration Laboratory and National Aeronautical Science Foundation of China under the contract No20105552 and funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions The authors wish to thank the editor and the anonymous reviewers for their valuable suggestions on improving this paper
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