Physical layer security for cooperative NOMA networks via Nakagami-m fading channels

被引：0
作者：
Wided Hadj Alouane
机构：
[1] University of Carthage,COSIM Laboratory, Higher School of Communication of Tunis
来源：
Telecommunication Systems | 2021年 / 78卷
关键词：
Non-orthogonal multiple access (NOMA); Nakagami-m fading channel; Amplify-and-forward; Decode-and-forward; Strictly positive secrecy capacity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, we investigate the physical layer security in cooperative non-orthogonal multiple access (NOMA) networks over Nakagami-m fading channels. Both amplify-and-forward (AF) and decode-and-forward (DF) protocols are studied. More particularly, closed-form exact and asymptotic expressions for strictly positive secrecy capacity are provided considering NOMA-AF and NOMA-DF relaying systems. Numerical results are presented to justify the accuracy of the obtained theoretical analysis. These results show that NOMA-AF and NOMA-DF relaying networks have a similar secrecy performance. Furthermore, asymptotic results show that the strictly positive secrecy capacity goes to a constant for high signal-to-noise ratio regimes. Finally, our proposed NOMA systems provide a high secrecy performance especially for a great value of Nakagami-m parameter.
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页码：531 / 538
页数：7
相关论文
共 77 条
[1]  
Ding Z(2014)On the performance of non-orthogonal multiple access in 5g systems with randomly deployed users IEEE Signal Processing Letters 21 1501-1505
[2]  
Yang Z(2015)Fairness for non-orthogonal multiple access in 5g systems IEEE Signal Processing Letters 22 1647-1651
[3]  
Fan P(2015)Cooperative non-orthogonal multiple access in 5g systems IEEE Communications Letters 19 1462-1465
[4]  
Poor HV(2016)Cooperative non-orthogonal multiple access with simultaneous wireless information and power transfer IEEE Journal on Selected Areas in Communications 34 938-953
[5]  
Timotheou S(2016)Hybrid decode-forward amplify-forward relaying with non-orthogonal multiple access IEEE Access 4 4912-4921
[6]  
Krikidis I(2017)Outage performance for cooperative noma transmission with an af relay IEEE Communications Letters 21 2428-2431
[7]  
Ding Z(2016)Relay selection for cooperative noma IEEE Wireless Communications Letters 5 416-419
[8]  
Peng M(2011)Physical layer security in wireless networks: A tutorial IEEE Wireless Communications 18 66-74
[9]  
Poor HV(2013)Optimal relay selection for physical-layer security in cooperative wireless networks IEEE Journal on Selected Areas in Communications 31 2099-2111
[10]  
Liu Y(2016)Energy harvesting for physical-layer security in ofdma networks IEEE Transactions on Information Forensics and Security 11 154-162
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