Research Of The Virus Spreading Model Of Wireless Network

As the wireless network is applied more and more widely, the destruction of the virus inthe network has become one of the major challenges in the field of wireless network security.Many research findings about security in cable network including the application of securitystrategies can not be directly adopted in the application of wireless network, since the wirelessnetwork terminal mobility, the dynamic characteristics of the network topology and someproblems produced by network terminal itself such as the energy resources, computing powerand storage, etc. In order to effectively control and resist diffusion of virus, a novel modelcorresponding to actual characteristics of the virus spreading is imperative.In this thesis, we firstly introduce the concept of wireless network, main features,security problems and current situations at home and abroad; Secondly, based on the researchof the complex network, common characters of some models are analyzed, and problems ofexisting virus propagation model in the wireless networks are elaborated; Thirdly, a newmodel SIRC is put forward along with numerical simulation; Finally, the impact of the nodemobility of wireless network on the process of the virus propagation is investigated in a newnetwork topology. Large-scale simulation results show that the suggested SIRC model canbetter analyze the mechanism of virus spreading in wireless network so as to providescientific theories for us to make effective prevention strategies, and it helps to guarantee thesecurity of network information systems.To sum up, the results of this thesis can be mainly described as follows:1) On the analysis of the existing classic virus model and the characteristics of thewireless network, the new network virus SIRC model is put forward, and analyse the criticalcharacteristics in uniform and heterogeneous topological condition. The results show that thesuggested SIRC model contribute to precisely analyze virus propagation and provide thetheoretical basis for making effective prevention strategies.2) In an analogue cellular network topology structure, the influence that the mobility ofwireless network have on the spread of virus is discussed. The results demonstrate that themobility accelerate the spread of the virus, which illustrate the control imposed on thevelocity of network node will alleviate the spread of virus.