Wireless Energy and Information Transfer Tradeoff for Limited-Feedback Multiantenna Systems With Energy Beamforming
作者： Xiaoming Chen , Chau Yuen , Zhaoyang Zhang
关键词: Wireless 、 Transmitter power output 、 Engineering 、 Information transfer 、 Upper and lower bounds 、 Transmitter 、 Energy harvesting 、 Electronic engineering 、 Beamforming 、 Channel state information
摘要: In this paper, we consider a multiantenna system where the receiver should harvest energy from transmitter by wireless transfer to support its information transmission. To maximize harvesting energy, propose performance of adaptive beamforming according instantaneous channel state (CSI). help obtain CSI for beamforming, further win-win quantization feedback strategy improve efficiencies both power and The focus paper is on tradeoff adjusting duration with total constraint. By revealing relationship between transmit power, duration, amount, derive two schemes maximizing an upper bound approximate lower average transmission rate, respectively. Moreover, impact imperfect at investigated, corresponding scheme also given. Finally, numerical results validate effectiveness proposed schemes.
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arxiv-vanity.com参考文章(13)
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