论文标题
许多人有些麦克尔：探测反向散射通信的反向散射能量回收
Many a little Makes a Mickle: Probing Backscattering Energy Recycling for Backscatter Communications
论文作者
论文摘要
在本文中，我们使用多个反向散射设备（BDS）调查和分析了基于全双工的反向散射通信。与以前只有收获能源的能量的工作不同，还可以通过回收反向散射能量来从先前的BD中收集能量。我们的目标是通过联合时间调度，束缚设计和反射系数（RC）调整系统的总能效（EE），同时满足总时间的限制，传递能源消耗，电路能耗以及每种BD的可靠性和无效的能源性和非现实性范围的限制。为了解决这个棘手的非凸问题，我们通过利用Dinkelbach的方法来重新制定问题。随后，替代迭代算法旨在解决它。仿真结果表明，所提出的算法比基准算法获得了EE好得多。
In this paper, we investigate and analyze full-duplex-based backscatter communications with multiple backscatter devices (BDs). Different from previous works where only the energy from the energy source is harvested, BDs are also allowed to harvest energy from previous BDs by recycling the backscattering energy. Our objective is to maximize the total energy efficiency (EE) of the system via joint time scheduling, beamforming design, and reflection coefficient (RC) adjustment while satisfying the constraints on the total time, the transmit energy consumption, the circuit energy consumption and the achievable throughput for each BD by taking the causality and the non-linearity of energy harvesting into account. To deal with this intractable non-convex problem, we reformulate the problem by utilizing the Dinkelbach's method. Subsequently, an alternative iterative algorithm is designed to solve it. Simulation results show that the proposed algorithm achieves a much better EE than the benchmark algorithms.
