Security Provisioning for Non-Orthogonal Multiple Access Networks With Limited Feedback

被引：3

作者：

Wang, Dawei ^{[1
,2
]}

Xu, Woping ^{[3
]}

Liang, Wei ^{[1
]}

Ding, Zhiguo ^{[4
]}

Li, Lixin ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710072, Peoples R China

[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

[3] Shanghai Maritime Univ, Coll Informat Engn, Shanghai 201306, Peoples R China

[4] Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 08期

基金：

中国国家自然科学基金;

关键词：

NOMA; Receivers; Resource management; Privacy; Quantization (signal); Power system reliability; Power allocation; security; ARTIFICIAL NOISE;

D O I：

10.1109/LWC.2020.2986443

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this letter, we investigate the information security problem for non-orthogonal multiple access (NOMA) networks against an external eavesdropper. Considering the overhead of the channel state information (CSI) feedback, we utilize the quantized CSI during the secure NOMA transmission, and derive the secrecy rate for each receiver by adopting the successive interference cancellation. In order to optimally allocate the transmit power, an optimization problem is formulated such that the minimum secrecy rate of the receivers is maximized. For the proposed scheme, we also analyze the secrecy outage and transmission outage probabilities, and their closed-form expressions are derived. In addition, the security-reliability tradeoff is analyzed. Numerical results are demonstrated to verify the analytical results.

引用

页码：1226 / 1229

页数：4

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