基于节点差异性的无线传感网恶意软件传播模型研究

Investigation of malware propagation model over wireless sensor network based on nodes' diversity

针对目前无线传感网络中恶意软件模型化工作的不足,在二维元胞自动机基础上提出了节点差异性的恶意软件传播模型。该模型引入了MAC无线信道争用机制和邻域通信距离因素,描述了节点差异度对恶意软件在无线传感网传播扩散的影响。分析仿真实验表明,大规模无线传感网络的节点差异度、无线信道争用机制都对传播行为产生了重要影响,降低了恶意软件的传播速度。与传统传播模型相比,该模型更能够准确描述恶意软件在无线传感网络环境下的传播行为,为无线传感网络安全防御研究提供基础。

With the research on malware modeling in wireless sensor network is immature,this paper proposed the malware propagation model with the nodes＇ diversity based on the 2D cellular automata.It introduced the wireless channel MAC mechanism and the factor of the adjacent communication range into this model.Also depicted the impact of nodes＇ diversity on the malware spreading over the wireless sensor network.The analysis and simulation indicate that nodes＇ diversity of the large scale WSN and wireless channel MAC mechanism make the important influence on the spread of the malware and reduce the propagation speed.Compared with the traditional spreading model,this model can more accurately describe the dynamic behaviour of the malware propagation over the WSN,and produces the research foundation for security defense on WSN.