Visible to the public Physical-Layer Security of Visible Light Communications with Jamming

TitlePhysical-Layer Security of Visible Light Communications with Jamming
Publication TypeConference Paper
Year of Publication2019
AuthorsTian, Dinghui, Zhang, Wensheng, Sun, Jian, Wang, Cheng-Xiang
Conference Name2019 IEEE/CIC International Conference on Communications in China (ICCC)
KeywordsEntropy, Exponential distribution, free-space optical communication, indoor communication, indoor VLC system, input signal, jamming, jamming LED, light emitting diodes, Metrics, multiple eavesdroppers, normal distribution, Photodetectors, physical-layer security, PLS scheme, pubcrawl, Radio frequency, Resiliency, Scalability, secrecy rate, security, Signal processing, telecommunication security, truncated generalized normal distribution, uniform distribution, visible light communication, visible light communications, Visual Light Communications Security, Wireless communication
AbstractVisible light communication (VLC) is a burgeoning field in wireless communications as it considers illumination and communication simultaneously. The broadcast nature of VLC makes it necessary to consider the security of underlying transmissions. A physical-layer security (PLS) scheme by introducing jamming LEDs is considered in this paper. The secrecy rate of an indoor VLC system with multiple LEDs, one legitimate receiver, and multiple eavesdroppers is investigated. Three distributions of input signal are assumed, i.e., truncated generalized normal distribution (TGN), uniform distribution, and exponential distribution. The results show that jamming can improve the secrecy performance efficiently. This paper also demonstrates that when the numbers of LEDs transmitting information-bearing signal and jamming signal are equal, the average secrecy rate can be maximized.
Citation Keytian_physical-layer_2019