Secrecy performance analysis on cooperative CR-NOMA network

Zhen YANG; Mengyao ZHU; Youhong FENG

doi:10.11959/j.issn.1000-436x.2020180

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Secrecy performance analysis on cooperative CR-NOMA network

Papers | 更新时间：2024-06-05

- Secrecy performance analysis on cooperative CR-NOMA network
- Journal on Communications Vol. 41, Issue 10, Pages: 139-147(2020)
- 作者机构：
  
  1. 南京邮电大学通信与信息工程学院，江苏南京 210003
  2. 南京邮电大学通信与网络技术国家地方联合工程研究中心，江苏南京 210003
  3. 安徽师范大学物理与电子信息学院，安徽芜湖 241199
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61671252);The Natural Science Foundation of Anhui Province(2008085MF181)
- DOI：10.11959/j.issn.1000-436x.2020180
  CLC： TP393
- Online First：2020-10，
  
  Published：25 October 2020
- 稿件说明：
移动端阅览
Zhen YANG, Mengyao ZHU, Youhong FENG. Secrecy performance analysis on cooperative CR-NOMA network[J]. Journal on Communications, 2020, 41(10): 139-147.
DOI：

Zhen YANG, Mengyao ZHU, Youhong FENG. Secrecy performance analysis on cooperative CR-NOMA network[J]. Journal on Communications, 2020, 41(10): 139-147. DOI： 10.11959/j.issn.1000-436x.2020180.

摘要

为了提高通信系统的安全性能且使有限的频谱得到高效利用，将填充式认知无线电（OCR）与非正交多址接入（NOMA）技术相结合，提出了一个次网络通过感知主用户是否占用频谱来实现辅助主网络通信或次网络通信的动态切换的系统模型。主次网络均采用人工噪声（AN）技术进一步改善系统的安全传输性能。通过分别推导主、次网络安全中断概率和安全吞吐量的表达式来研究系统的安全中断性能。仿真结果表明了所提出的认知协作NOMA方案在降低中断概率、提高吞吐量方面的有益效果，并且进一步给出了人工噪声功率分配因子对系统性能的影响。

Abstract

In order to improve the secrecy performance of communication system and make efficient use of limited spectrum

overlay cognitive radio (OCR) technology was combined with non-orthogonal multiple access (NOMA) technology and the communication model was proposed

in which secondary network realized dynamic switching between assisting primary network communication and secondary network communication by sensing whether the primary user occupied the spectrum or not.Artificial noise (AN) aided technology was used in primary and secondary networks respectively to further improve the secrecy performance of the system.The secrecy performance of the system was studied by deducing the expressions of the primary and secondary network secrecy outage probability and secrecy throughput respectively.The simulation results show that the proposed cognitive cooperative NOMA communication scheme is beneficial in reducing secrecy outage probability and increasing secrecy throughput.Furthermore

the influence of AN power allocation factor on system performance is given.

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references

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