Propagation And Control Of Malware In Underwater Waterway Networks Based On Time-delay Theor

With the development of intelligent transportation technology,the intelligent channel transportation based on wireless communication technology has gradually replaced the traditional waterway transportation.Due to the openness of channel network communication,network vulnerability,and the dynamics of nodes moving with the ocean current,the intrusion and dissemination of malware becomes easily.Therefore,this paper explores and predicts the propagation behavior of malware in the underwater channel network,so as to further study its control strategy and provide theoretical reference for the security strategy of the channel network,which consists of water traffic vehicle and underwater sensor network.Based on the concept of hierarchical deployment of waterway network,the waterway network is divided into three layers in this paper: shallow area,deep area and the underwater ad network--maritime traffic vehicle cooperative communication area.By modeling the malware propagation model at different areas,the propagation behavior of malware is analyzed and the corresponding control strategies are explored.For the shallow area of the channel,a malware propagation model of SIS-L(Susceptible-Infected-Susceptible-Low-energy)is proposed in this paper.By introducing the time-delay concept,and analyzing the influence of the time delay on the transmission of malware,the corresponding control strategy is put forward.The simulation results show that the control strategy based on SIS-L model can clear the malware in the end of control,and optimize the comprehensive cost of the control strategy.For the deep area of the channel,a malware propagation model of SIRS-L(Susceptible-Infected-Recovered-Susceptible-Low-energy)is proposed in this paper.This paper analyzes the influence of time delay effect on the stability of underwater channel network,explores the occurrence conditions and properties of Hopf bifurcation,and compares the effect of different control strategies.The simulation compares the advantages and disadvantages of different control strategies,and shows that the optimal control strategy can realize the comprehensive cost optimization during the control process,which includes the malware suppression degree,node network topology integrity and the cost of control.It also confirmed the optimal control strategy has certain serviceability in the research of channel network safety.For the interactive communication area,this paper presents a model of interactive communication,which serve the underwater self-group network and water traffic vehicle.This paper analyzes the diffusion process of malware in the interaction model and proposes the corresponding malware control strategy.In the simulation part,the composite cost of various control methods for malware suppression is compared under different traffic efficiency,communication radius,media scanning rate and vessel density,which verifies the effectiveness of the optimal strategy to reducing the comprehensive cost of malware removal.The analysis of this paper is based on the technical guidance of the hierarchical operation of the channel network,and focuses on the modeling of the targeted malware communication model and the exploration of the malware suppression strategies in different area,which provides a theoretical reference for the network security of the channel.