北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2020, Vol. 43 ›› Issue (4): 54-60.doi: 10.13190/j.jbupt.2019-214

• 论文 • 上一篇    下一篇

Nakagami-m信道衰落下的多时隙能量收集无线通信

王明伟, 李慧贞   

  1. 陕西科技大学 电子信息与人工智能学院, 西安 710021
  • 收稿日期:2019-10-18 发布日期:2020-08-15
  • 作者简介:王明伟(1976-),男,副教授,E-mail:wangmingwei@sust.edu.cn.
  • 基金资助:
    陕西省科技厅科技攻关项目(2020NY-172,2020NY-023);陕西科技大学博士创新基金(2019BJ-03);陕西省咸阳市工业重点攻关项目(2019K02-17)

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

WANG Ming-wei, LI Hui-zhen   

  1. School of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
  • Received:2019-10-18 Published:2020-08-15

摘要: 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.

关键词: 能量收集, Nakagami-m, 有效吞吐量, 误比特率

Abstract: 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.

Key words: energy harvesting, Nakagami-m, effective throughput, bit error rate

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