Physical layer security for indoor GSM VLC

被引：2
|
作者：
Lu, Meng [1 ]
Wang, Fasong [1 ]
Li, Rui [2 ]
Sun, Peng [1 ]
Zhang, Yanbin [1 ]
机构：
[1] Zhengzhou Univ, Sch Elect & Informat Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Henan Univ Technol, Sch Sci, Zhengzhou 450001, Henan, Peoples R China
来源：
DIGITAL SIGNAL PROCESSING | 2023年 / 132卷
基金：
中国国家自然科学基金;
关键词：
Visible light communications (VLC); Physical layer security (PLS); Generalized spatial modulation (GSM); Optical artificial noise (OAN); Power allocation; Particle swarm optimization (PSO); VISIBLE-LIGHT COMMUNICATION; SECRECY PERFORMANCE; SYSTEMS; NETWORKS; MIMO;
D O I：
10.1016/j.dsp.2022.103824
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We consider the physical layer security (PLS) of the generalized spatial modulation (GSM) enabled indoor multiple-input single-output (MISO) visible light communication (VLC) downlink, wherein an optical artificial noise (OAN)-assisted scheme is proposed to enhance the secrecy of the considered system. Due to the transmitter (Alice) sending confidential messages and OAN with the power and amplitude constraints, a truncated Gaussian distribution is exploited. With a finite discrete distribution of the input signals, the secrecy performance is analyzed in the OAN-assisted GSM VLC system. Specifically, the average mutual information (AMI) is first proposed, then the lower bound and approximation of AMI, and the achievable secrecy rate (ASR) are evaluated as well. In addition, considering the proposed power allocation problem of the considered OAN-assisted GSM VLC system, the particle swarm optimization (PSO) algorithm is explored to attain the global optimal power allocation coefficient, which is capable of maximizing the ASR. The numerical and simulation results validate our theoretical results of the OAN-assisted secrecy performance of the considered indoor GSM VLC system. (c) 2022 Elsevier Inc. All rights reserved.
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页数：16
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