通信学报 ›› 2023, Vol. 44 ›› Issue (1): 177-188.doi: 10.11959/j.issn.1000-436x.2023004

• 学术论文 • 上一篇    下一篇

基于自适应功率分裂的协作非正交多址接入无线携能通信网络性能分析

杨正1, 郑云1, 余月好1, 吴怡1, 董志诚2, 邢松3   

  1. 1 福建师范大学光电与信息工程学院,福建 福州 350117
    2 西藏大学工学院,西藏 拉萨 850000
    3 加州州立大学洛杉矶分校信息系统系,美国 洛杉矶 CA90032
  • 修回日期:2022-11-02 出版日期:2023-01-25 发布日期:2023-01-01
  • 作者简介:杨正(1985- ),男,福建莆田人,博士,福建师范大学副教授,主要研究方向为非正交多址接入、智能反射面、物理层安全等
    郑云(1991- ),女,福建长乐人,福建师范大学实验师,主要研究方向为非正交多址接入、可见光通信等
    余月好(1993- ),女,广东云浮人,福建师范大学硕士生,主要研究方向为非正交多址接入、无线携能通信等
    吴怡(1970- ),女,辽宁葫芦岛人,博士,福建师范大学教授、博士生导师,主要研究方向为无线自组织网、无线视频传输等
    董志诚(1982- ),男,四川成都人,西藏大学教授、博士生导师,主要研究方向为车联网、无线信息采集等
    邢松(1964- ),男,江苏扬州人,加州州立大学洛杉矶分校教授,主要研究方向为互联网统计测量、无线移动通信及语音和图像处理等
  • 基金资助:
    国家自然科学基金资助项目(U1805262);福建省自然科学基金资助项目(2022J01169);福建省中央引导地方科技发展资金资助项目(2021L3010);福建省科技创新重点基金资助项目(2021G02006)

Performance analysis for cooperative NOMA networks based SWIPT with adaptive power splitting

Zheng YANG1, Yun ZHENG1, Yuehao YU1, Yi WU1, Zhicheng DONG2, Song XING3   

  1. 1 College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
    2 School of Engineering, Tibet University, Lhasa 850000, China
    3 Department of Information Systems, California State University, Los Angeles, CA90032, USA
  • Revised:2022-11-02 Online:2023-01-25 Published:2023-01-01
  • Supported by:
    The National Natural Science Foundation of China(U1805262);The Natural Science Foundation of Fujian Province(2022J01169);The Local Science and Technology Development of Fujian Province(2021L3010);The Key Project of Science and Technology Innovation of Fujian Province(2021G02006)

摘要:

为了提高无线通信系统的频谱利用率、降低功耗,针对双向协作非正交多址接入携能网络,提出了一种自适应功率分裂的无线携能准则。中继利用译码转发协议和用户的距离信息执行串行干扰消除,检测用户的信息并从发送端收割能量。发送端设计自适应功率分裂准则,使中继可以成功检测用户的信息,然后把剩余的能量全部用于能量传输,进而中继可以收割到最多的能量并将所解码的信息转发给接收端。基于所提的自适应功率分裂准则,分析网络的全局中断概率、端到端中断概率,以及高信噪比条件下的分集增益。与基于固定功率分裂的协作三级正交多址接入携能网络相比,基于自适应功率分裂的协作两级非正交多址接入携能网络可以获得更优的中断性能。

关键词: 自适应功率分裂, 无线携能通信, 非正交多址接入, 中断概率, 分集增益

Abstract:

In order to improve the spectrum effectiveness, decrease the power consumption of wireless communication system, for a two-way cooperative non-orthogonal multiple access (NOMA) network with simultaneous wireless information and power transfer (SWIPT), an adaptive power splitting scheme of SWIPT was proposed.Based on the decode-and-forward protocol and the users’ distance information, the successive interference cancellation was carried out at the relay to decode the users’ messages and harvest the energy from the sources.An adaptive power splitting scheme was proposed based on users’ channel state information, which the relay could successfully decode the users’ information and harvest the most energy from the sources.Based on the harvested energy, the relay forwarded the decoded information of the users in the next time slot.According to the proposed adaptive power splitting scheme, the overall outage probability, end-to-end outage probability, and the diversity gain at high signal-to-noise ratio were derived.Compared with three-way cooperative orthogonal multiple access network with fixed power splitting of SWIPT, the proposed adaptive power splitting of SWIPT for two-way cooperative NOMA networks can achieve much better outage performance.

Key words: adaptive power splitting, SWIPT, NOMA, outage probability, diversity gain

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