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Diversity and Multiplexing Tradeoff Analysis of Fractional Cooperative Networks

  • Kun Xu EMAIL logo , Xiao-xin Yi and Hui Li
Published/Copyright: April 11, 2011
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Frequenz
From the journal Volume 65 Issue 1-2

Abstract

In this paper, we analyze the diversity and multiplexing tradeoff (DMT) performance of fractional cooperative networks with three users in Rayleigh fading channels. We derive the precise DMT of both coded cooperation and space-time cooperation analytically. The DMT provides an upper bound for the achievable diversity gain corresponding to certain multiplexing gain. Our analysis reveals that both fractional cooperative schemes have the same DMT and the DMT performance varies with the exchange ratio defined as the ratio of the first phase to the entire transmission phase. A golden split exchange ratio of 0.618 is found to perform well from a practical implementation point of view.


Corresponding author: Kun Xu, Department of Radio Communication, Institute of Communication Engineering, PLA University of Science and Technology, No. 2 Biaoyin, Yudao Street, Baixia District, 210007 Nanjing, Jiangsu Province, P. R. China

Received: 2010-07-05
Published Online: 2011-04-11
Published in Print: 2011-March

Copyright © 2011 De Gruyter

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