面向鲁棒高效多发射端无线功率传输的时空调度
Spatio-Temporal Scheduling for Robust and Efficient Multi-Transmitter Wireless Power Transfer
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中文总结 AI 辅助
该研究针对多发射端无线功率传输系统，提出时空调度方法，结合协同波束成形提升鲁棒性与效率，仿真验证其在阴影衰落下的供电潜力。
中文摘要 AI 辅助
在多用户无线功率传输（WPT）中，用于在接收端间分配传输资源的调度方案对提升功率传输效率至关重要。调度可分为时分（TD）和空分（SD）方案，其传输顺序与方向用于控制功率的传输时机与对象。TD-WPT可通过在时间上集中功率来利用整流天线的非线性特性，但依赖单一位置的高定向传输的系统在时变信道条件下鲁棒性会降低。本研究探究了时空调度在协同多发射端WPT系统中的有效性。所提方法采用多个发射端，在功率传输时对信道变化具有鲁棒性；此外，发射端间的协同波束成形可利用簇间干扰。仿真结果表明，所提方案即使在阴影衰落条件下，也具备实现鲁棒高效供电的潜力。
英文摘要
In multi-user wireless power transfer (WPT), scheduling schemes that determine the allocation of transmission resources among receivers play a crucial role in improving power transfer efficiency. Scheduling can be classified into time-division (TD) and space-division (SD) schemes, with the transmission order and direction designed to control when and to whom power is delivered. TD-WPT can exploit the nonlinear characteristics of rectennas by concentrating power in time; however, a system relying on highly directional transmission from a single location reduces robustness under time-varying channel conditions. This study investigated the effectiveness of spatio-temporal scheduling in coordinated multi-transmitter WPT systems. By employing multiple transmitters, the proposed method is robust against channel variations in delivering power. Moreover, coordinated beamforming among transmitters exploits inter-cluster interference. Simulation results demonstrate the potential of the proposed scheme for robust and efficient power supply, even under shadowing conditions.
