Please use this identifier to cite or link to this item: https://doi.org/10.1109/WCNC.2013.6555193
Title: Error performance analysis of differential detection for amplify-and-forward relay systems
Authors: Lin, X.
Wu, M.-W.
Kam, P.-Y. 
Issue Date: 2013
Source: Lin, X.,Wu, M.-W.,Kam, P.-Y. (2013). Error performance analysis of differential detection for amplify-and-forward relay systems. IEEE Wireless Communications and Networking Conference, WCNC : 3873-3878. ScholarBank@NUS Repository. https://doi.org/10.1109/WCNC.2013.6555193
Abstract: We consider a differential amplify-and-forward transmission scheme for a two-user cooperative system with a single relay. We propose a new analytical approach based on first principles, and obtain a closed-form expression for the exact bit error probability (BEP) in Rayleigh fading. This result involves only a single exponential integral function. It applies generally to the case where the channel statistics on different links are non-identical. As expected, the BEP decreases monotonically with the source transmission energy, or the relay transmission energy. The explicit BEP result allows us to study optimum energy allocation between the source and the relay, given a total transmission energy. By lower bounding the exact BEP expression via Jensen's inequality, we obtain analytically a closed-form approximate optimum energy allocation solution between the source and the relay. Numerical results show that the BEP bound and the approximate optimum energy allocation solution are very tight. © 2013 IEEE.
Source Title: IEEE Wireless Communications and Networking Conference, WCNC
URI: http://scholarbank.nus.edu.sg/handle/10635/70202
ISBN: 9781467359399
ISSN: 15253511
DOI: 10.1109/WCNC.2013.6555193
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