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首页> 外文期刊>Wireless Communications Letters, IEEE >A Low-Complexity Beamforming Design for Multiuser Wireless Energy Transfer
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A Low-Complexity Beamforming Design for Multiuser Wireless Energy Transfer

机译:用于多用户无线能量传输的低复杂性波束形成设计

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摘要

Wireless energy transfer (WET) is a green enabler of low-power Internet of Things (IoT). Therein, traditional optimization schemes relying on full channel state information (CSI) are often too costly to implement due to excessive energy consumption and high processing complexity. This letter proposes a simple, yet effective, energy beamforming scheme that allows a multi-antenna power beacon (PB) to fairly power a set of IoT devices by only relying on the first-order statistics of the channels. In addition to low complexity, the proposed scheme performs favorably as compared to benchmarking schemes and its performance improves as the number of PB’s antennas increases. Finally, it is shown that further performance improvement can be achieved through proper angular rotations of the PB.
机译:无线能量转移(湿)是低功率互联网的绿色推动因素(物联网)。其中,由于过度的能耗和高处理复杂性,传统优化方案依赖于全频道状态信息(CSI)通常太昂贵而且实现。这封信提出了一种简单但有效的能量波束成形方案,其允许多天线电源信标(PB)通过仅依赖于信道的一阶统计来公平地动力一组IOT设备。除了低复杂度之外,与基准方案相比,所提出的方案效果很好,并且随着PB的天线数量的增加,其性能提高。最后,示出通过PB的适当角度旋转可以实现进一步的性能改进。

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