Journal of University of Science and Technology of China ›› 2010, Vol. 40 ›› Issue (4): 419-424.DOI: 10.3969/j.issn.0253-2778.2010.04.015
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ZHANG Chao
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Abstract: Cooperative communication is considered as a power-efficient technology for resource-constraint wireless networks. However, its gains often come at a price in terms of extra power consumption for relay running and relaying processing. A new selective cooperative scheme was proposed to satisfy an overall performance requirement so that cooperation is only invoked when necessary. Optimal power allocations under overall symbol-error-rate (SER) constraint and maximum power limit were derived for cooperative schemes. Taking into account extra power, the scheme with minimum overall power was adopted for a source-destination pair. Simulation results show that the proposed schemes are more power-efficient than the conventional cooperative scheme.
Key words: cooperative communication, power-efficiency, relay selecting
ZHANG Chao, LIAO Xiaoguang, WANG Weidong, WEI Guo. Selective cooperative communication based on power optimal allocation[J]. Journal of University of Science and Technology of China, 2010, 40(4): 419-424.
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URL: http://just-cn.ustc.edu.cn/EN/10.3969/j.issn.0253-2778.2010.04.015
http://just-cn.ustc.edu.cn/EN/Y2010/V40/I4/419