论文标题
多源无线能量传输的低复杂性束缚设计
A Low-Complexity Beamforming Design for Multiuser Wireless Energy Transfer
论文作者
论文摘要
无线能源转移（湿）是低功率互联网（IoT）的绿色推动者。在其中，由于能耗过多和高处理复杂性，依赖全信道状态信息（CSI）的传统优化方案通常太昂贵了。这封信提出了一种简单而有效的能量波束成形方案，该方案允许一个多的Antenna Power Beacon（PB）通过仅依靠通道的一阶统计信息来相当为一组IoT设备提供动力。除了低复杂性外，与基准方案相比，提出的方案表现出色，并且其性能随着PB天线的数量的增加而提高。最后，表明可以通过PB的正确角度旋转来实现进一步的性能。
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.
