Non-orthogonal multiple access wireless energy harvesting cooperative system

Xiaoping JIN; Qing WU; Wenchao ZHAI; Jianrong BAO

doi:10.11959/j.issn.1000-0801.2021054

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Non-orthogonal multiple access wireless energy harvesting cooperative system

Research and Development | 更新时间：2024-06-05

- Non-orthogonal multiple access wireless energy harvesting cooperative system
- Telecommunications Science Vol. 37, Issue 4, Pages: 46-53(2021)
- 作者机构：
  
  1. 中国计量大学信息工程学院，浙江省电磁波信息技术与计量检测重点实验室，浙江杭州 310018
  2. 杭州电子科技大学信息工程学院，浙江杭州 310018
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2021054
  CLC： TN929.5
- Published Online：2021-04，
  
  Published：20 April 2021
- 稿件说明：
移动端阅览
Xiaoping JIN, Qing WU, Wenchao ZHAI, et al. Non-orthogonal multiple access wireless energy harvesting cooperative system[J]. Telecommunications science, 2021, 37(4): 46-53.
DOI：

Xiaoping JIN, Qing WU, Wenchao ZHAI, et al. Non-orthogonal multiple access wireless energy harvesting cooperative system[J]. Telecommunications science, 2021, 37(4): 46-53. DOI： 10.11959/j.issn.1000-0801.2021054.

摘要

近年，非正交多址接入（non-orthogonal multiple access，NOMA）技术作为一种应用于5G无线网络的多址接入技术，引起了人们的广泛关注。为了提高NOMA技术的频谱效率、覆盖范围和抗噪性能，并降低系统的能耗，设计了一种基于正交索引调制多址接入（quadrature index modulation multiple access，QIMMA）技术的无线携能（simultaneous wireless information and power transfer，SWIPT）协作网络上行NOMA传输系统，记为协作QIMMA-SWIPT。具体来说，多个远端用户组成一个QIMMA系统，然后通过协作中继的译码转发拓展系统的覆盖范围，并在中继端采用SWIPT技术以便信息在译码的同时进行能量的采集，降低系统的能耗。详细推导了QIMMA-SWIPT系统平均误码率的理论上界，并在频谱效率一定的情况下通过模拟仿真对比分析，得出协作QIMMA-SWIPT系统的误码率性能优于协作IMMA-SWIPT和SCMA-SWIPT系统的结论。此外，深入研究了功率切割因子和信源到中继的距离对系统误码性能的影响。

Abstract

Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency

coverage and anti-noise performance of NOMA technology

while reduce the energy consumption of the system

a simultaneous wireless information and power transfer (SWIPT) cooperative network uplink NOMA transmission system based on orthogonal index modulation multiple access (IMMA) technology was designed

hereafter was denoted as QIMMA-SWIPT.Specifically

the QIMMA system was formed by multiple remote users

and it improved the spectrum efficiency and anti-noise performance as well as expanded the communication coverage and reduced the energy consumption of the system by decoding and forwarding relay cooperative transmission with SWIPT technology.The theoretical upper bound of the average bit error rate of QIMMA-SWIPT was derived.Simulation and analysis demonstrate that

under the same spectrum efficiency

the bit error rate performance of the cooperative QIMMA-SWIPT system is better than that of the cooperative IMMA-SWIPT and SCMA-SWIPT systems.In addition

the effects of power cut factor and source-to-relay distance on bit error performance were also deeply analyzed.

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Keywords

references

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