期刊
SENSORS
卷 21, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/s21010123
关键词
wireless rechargeable sensor network; cyber security; stability analysis; optimal control
资金
- National Natural Science Foundation of China [61403089]
This paper proposes a novel epidemic model SILS to study the security issues of WRSNs, analyzing its stability and the relationship between charging rate and R-0. It also constructs an attack-defense game between malware and WRSNs to obtain optimal strategies for both parties.
With the development of wireless rechargeable sensor networks (WRSNs ), security issues of WRSNs have attracted more attention from scholars around the world. In this paper, a novel epidemic model, SILS(Susceptible, Infected, Low-energy, Susceptible), considering the removal, charging and reinfection process of WRSNs is proposed. Subsequently, the local and global stabilities of disease-free and epidemic equilibrium points are analyzed and simulated after obtaining the basic reproductive number R-0. Detailedly, the simulations further reveal the unique characteristics of SILS when it tends to being stable, and the relationship between the charging rate and R-0. Furthermore, the attack-defense game between malware and WRSNs is constructed and the optimal strategies of both players are obtained. Consequently, in the case of R-0<1 and R-0>1, the validity of the optimal strategies is verified by comparing with the non-optimal control group in the evolution of sensor nodes and accumulated cost.
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