Research Article
Adaptive Power Allocation for Three Transmission Phases Cognitive Relay Networks with Data Rate Fairness
@INPROCEEDINGS{10.4108/icst.chinacom.2014.256407, author={Peng Lan and Fenggang Sun and Guowei Zhang and Jialin Hou}, title={Adaptive Power Allocation for Three Transmission Phases Cognitive Relay Networks with Data Rate Fairness}, proceedings={9th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={1}, keywords={cognitive radio relay newwork power allocation quality of service decode and forward}, doi={10.4108/icst.chinacom.2014.256407} }- Peng Lan
Fenggang Sun
Guowei Zhang
Jialin Hou
Year: 2015
Adaptive Power Allocation for Three Transmission Phases Cognitive Relay Networks with Data Rate Fairness
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256407
Abstract
In this paper, we consider a two way cognitive relay network using decode and forward (DF) protocol over Rayleigh fading channels. Under the joint outage constraint of the primary user (PU) caused by a pair of secondary transmitters (ST) and the secondary relay (SR), the problem of power allocation for the secondary users (SU) is reformulated. We derive the optimal power allocation algorithm for the SUs based on the date rate fairness, under the proposed primary user outage probability constraint. Simulations and comparisons are presented to illustrate the effectiveness of our proposed power allocation scheme.
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