Nakagami-m信道衰落下的多时隙能量收集无线通信

由于无线信道存在衰落，射频能量收集（EH）器可将收集到的电磁波能量转化为用于无线通信的电源，其功率具有动态随机特性.为此，研究了Nakagami-m信道衰落下的多时隙"收集-存储-使用"能量收集方案的有效吞吐量以及"收集-使用"能量收集方案的二进制相干和非相干解调平均误比特率性能指标，推导出了精确的理论闭合公式.仿真结果表明，在Nakagami-m信道衰落的无线通信环境下，采用"收集-存储-使用"能量收集方案的无线通信存在最佳时隙数，以实现最大有效的吞吐量，而采用"收集-使用"的能量收集方案时，无线通信会使用少量时隙来平衡误码率和通信迟延.

Multi-Slot Energy Harvesting Wireless Communication over Nakagami-m Channel Fading

Due to the fading of the channel,the energy harvester converts the harvested electromagnetic wave energy into a power source for transmitting wireless signals again,and its power has random dynamic characteristics. Aiming at the wireless communication environment with Nakagami-m channel fading,linear radio frequency energy harvesters combining with multi-slot "harvest-storage-use" and "harvest-use" schemes to realize EH are proposed. The effective throughput of the "harvest-storage-use" EH scheme and the average bit error rate of binary digital coherent and incoherent demodulation of the "harvest-use" EH scheme are studied and analyzed. The simulation results show that the wireless communication adopting the "harvest-storage-use" strategy has the optimal number of time slots to achieve the best effective throughput,while the wireless communication adopting the "harvest-use" EH scheme should use a small number of time slots to balance the bit error rate and communication delay.