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	Resource Allocation for OFDMA Relay Networks with Wireless Information and Power Transfer
	Yanyan Shen; Kyung Sup Kwak; Bo yang; Shuqiang Wang
	2015
会议名称	IEEE Globecom2015
会议地点	San Diego, CA, USA
英文摘要	In this paper, we investigate the resource allocation for orthogonal frequency division multiple access relay networks, where the relay does not have embedded energy supply and needs to first harvest energy from the received signals from the source before forwarding transmission. The relay uses time switching scheme for wireless information and power transfer. We aim to maximize the weighted sum rate under several constraints by varying the source transmission power, the relay transmission power, and the time switching ratio. We formulate the joint resource allocation problem as an optimization problem, which is non-convex. Although it is difficult to solve the non-convex problem, we derive its closed-form solution by exploiting its special structure. We also prove that the closed-form solution is a partial optimum. Finally, simulations verify the proposed closed-form solution is superior to the equal power solution.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/7005]
专题	深圳先进技术研究院_数字所
作者单位	2015
推荐引用方式 GB/T 7714	Yanyan Shen,Kyung Sup Kwak,Bo yang,et al. Resource Allocation for OFDMA Relay Networks with Wireless Information and Power Transfer[C]. 见:IEEE Globecom2015. San Diego, CA, USA.

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