Cooperative multiple relay system for frequency selective environment:outage analysis and power allocation

Haghighi, Ali A. and Navaie, Keivan (2012) Cooperative multiple relay system for frequency selective environment:outage analysis and power allocation. Wireless Communications and Mobile Computing, 12 (2). pp. 184-194. ISSN 1530-8669

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Abstract

In this paper, we propose a novel cooperative relaying scheme with multiple relays for frequency selective wireless environment. In our proposed scheme, the frequency selective wireless channel is divided into flat fading sub-channels. Cooperative relaying is then employed over each sub-channel to improve the system diversity order. We then investigate the asymptotic behavior of the outage probability and show that the proposed scheme achieves full diversity order in both amplify and forward (AF) and adaptive decode and forward (ADF) relaying scenarios. Furthermore, we propose a power allocation strategy to minimize the system outage probability. Simulation results confirm our analysis and show that the proposed power allocation method outperforms uniform power allocation.

Item Type:
Journal Article
Journal or Publication Title:
Wireless Communications and Mobile Computing
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
72595
Deposited By:
Deposited On:
27 Jan 2015 08:22
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 09:07