In this letter, an optimal time allocation scheme is proposed to improve the throughput of energy harvesting based backscatter communication. The base station (BS) serving as the power supply is transmitting continuously with constant power. All the relays can harvest radio frequency (RF) energy from the transmission of BS while the user performs backscatter transmission, and then the selected relay decodes and forwards the information from user with harvested RF energy. We propose an optimal time allocation scheme that considers the adaptive backscatter coefficient and relay selection to maximize throughput. Simulation results demonstrate that the proposed scheme outperforms the benchmark strategies in system throughput improvement.

中文翻译：

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基于中继选择的具有能量收集的协同反向散射传输：吞吐量最大化


在这封信中，提出了一种最佳时间分配方案，以提高基于能量收集的反向散射通信的吞吐量。作为电源的基站（BS）以恒定的功率连续发射。当用户进行反向散射传输时，所有中继都可以从基站的传输中收集射频（RF）能量，然后选定的中继利用收集到的射频能量解码并转发来自用户的信息。我们提出了一种最佳时间分配方案，该方案考虑自适应反向散射系数和中继选择以最大化吞吐量。仿真结果表明，所提出的方案在系统吞吐量提高方面优于基准策略。