Diversity and coding gains of fixed-gain amplify-and-forward with partial relay selection in Nakagami-m fading

Authors:
Haiyang Ding;Jianhua Ge;Daniel Benevides da Costa;Zhuoqin Jiang
Affiliations:
State Key Laboratory of Integrated Service Networks, Xi'an University, Xi'an, China and Xi'an Communication Institute, Xi'an, China;State Key Laboratory of Integrated Service Networks, Xi'an University, Xi'an, China;Federal University of Ceara - Campus Sobral, CE, Brazil;Xi'an Communication Institute
Venue:
IEEE Communications Letters
Year:
2010

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Abstract

A comprehensive study regarding the diversity and coding gains of fixed-gain amplify-and-forward dual-hop relaying systems with partial relay selection is performed. Our analysis allows for arbitrary independent Nakagami-m fading channels with distinct fading parameters among the links. It is shown that the diversity gain is determined by the minimum of the fading parameter pertaining to the selected relay-destination link and the sum of that of the source-relay links. Simulation results are presented to corroborate the proposed methodology.