基于人工噪声的协作型非正交多址网络物理层安全性增强

Q2 Engineering
Van-Long Nguyen, Dac-Binh Ha, Duc-Dung Tran, Yoonill Lee
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引用次数: 6

摘要

本文对下行链路协作中非正交多址(NOMA)物理层保密性能进行了研究。给定的系统包括一个源,多个合法用户对以窃听者的形式存在。通过采用解码转发(DF)方案,好用户将从源端获取信息发送给每对中的坏用户,我们假设窃听者将花费精力对来自坏用户的消息进行解码。为了提高给定系统的保密性能,提出了人工噪声协同传输方案ANCOTRAS。为了评估该方案的性能,我们通过实现信噪比(SNR)和信干扰加噪声比(SINR)的统计特征,得到了保密中断概率的下界和精确的封闭表达式。此外,基于关键参数(包括功率分配比)、平均发射功率和用户对数量,研究了给定系统的保密性能,用于验证所提方案。最后,利用蒙特卡罗模拟结果对最终分析结果的准确性进行了验证。2019年7月14日收到;2019年7月25日接受;发布于2019年8月30日
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancing Physical Layer Security for Cooperative Non-Orthogonal Multiple Access Networks with Artificial Noise
This paper does the study on the performance of the physical layer secrecy of nonorthogonal multiple access (NOMA) in downlink cooperative. The given system includes one source, multiple legitimate user pairs in the form of an eavesdropper. By applying the decode-and-forward (DF) scheme, a good user will take the information from the source to send it to the bad user in every pair, we assume that the eavesdropper will spend effort to decode the message from the bad user. To enhance the secrecy performance of given system, the artificial noise cooperative transmission scheme named ANCOTRAS is suggested. To assess the performance of the suggested scheme, we obtained the lower bound and exact closed-form expressions of secrecy outage probability by implementing statistical characteristics of signal-to-noise ratio (SNR) and signalto-interferenceplus-noise ratio (SINR). Furthermore, the secrecy performance of given system is studied basing on key parameters (including the power allocation ratio), average transmit power and amount of user pair for verifying the suggested scheme. At the end, the accuracy of final analytical outcome is reassured by using the Monte-Carlo simulation results. Received on 14 July 2019; accepted on 25 July 2019; published on 30 August 2019
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来源期刊
CiteScore
4.00
自引率
0.00%
发文量
15
审稿时长
10 weeks
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