Optimal Relay Selection for Decode-and-Forward Opportunistic Relaying Conference Paper

abstract

• In this paper, we consider the optimal relay selection policy for decode-and-forward opportunistic relaying systems under the assumption that the channel gain of the source-destination link is good-enough to produce some improvement in the end-to-end performance over the relay channels. The optimal relay selection policy shows that the conventional relay selection policy that appeared in the literature is suboptimal. We derive the exact expression for the end-to-end outage probability over Rayleigh fading channels. In addition, we look into the asymptotic high signal-to-noise ratio (SNR) regime, and characterize the diversity order and coding gain. Our findings reveal that the new optimal relay selection policy outperforms the suboptimal relay selection policy via coding gain while both policies have the same diversity order. We provide simulation results to verify the validity of our theoretical analysis. 2013 IEEE.

name of conference

• 2013 1st International Conference on Communications, Signal Processing, and their Applications (ICCSPA)

authors

• Alnuweiri, Hussein

published proceedings

• 2013 FIRST INTERNATIONAL CONFERENCE ON COMMUNICATIONS SIGNAL PROCESSING, AND THEIR APPLICATIONS (ICCSPA'13)

author list (cited authors)

• Shaqfeh, M., Al-Qahtani, F., & Alnuweiri, H.

citation count

• 6

complete list of authors

• Shaqfeh, Mohammad||Al-Qahtani, Fawaz||Alnuweiri, Hussein

publication date

• February 2013

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• n2377-682XISSN  Journal

keywords

• Decode-and-forward
• Opportunistic Relaying
• Outage Probability
• Relay Selection

Digital Object Identifier (DOI)

• 10.1109/iccspa.2013.6487295

International Standard Book Number (ISBN) 13

• 978-1-4673-2820-3

start page

• 1

end page

• 4

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Ficcspa.2013.6487295