Please use this identifier to cite or link to this item: https://doi.org/10.1109/ACSSC.2006.354826
Title: Outage-optimal transmission strategies for Rayleigh fading relay channels
Authors: Zhu, Y.
Xin, Y. 
Kam, P.-Y. 
Issue Date: 2006
Source: Zhu, Y.,Xin, Y.,Kam, P.-Y. (2006). Outage-optimal transmission strategies for Rayleigh fading relay channels. Conference Record - Asilomar Conference on Signals, Systems and Computers : 636-640. ScholarBank@NUS Repository. https://doi.org/10.1109/ACSSC.2006.354826
Abstract: We investigate optimal transmission strategies for Rayleigh fading relay channels, which minimize the outage probability of the achievable rate. We consider two cases depending upon whether spatial power allocation at the source and relay is available. We disclose that when no spatial power allocation is available, the optimal transmit signals are not necessarily independent, and their correlation depends on the signal-to-noise ratios of the links and the transmission rate. Moreover, we derive optimal spatial power allocation strategies in a small outage scenario. Our results show that it is not always beneficial to utilize a relay, and the optimal spatial power allocation depends on the total transmit power, the transmission rate, and the variances of the channels. Simulation results validate our theoretical findings.
Source Title: Conference Record - Asilomar Conference on Signals, Systems and Computers
URI: http://scholarbank.nus.edu.sg/handle/10635/71345
ISBN: 1424407850
ISSN: 10586393
DOI: 10.1109/ACSSC.2006.354826
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