Virus spreading in wireless sensor networks with a medium access control mechanism

In this paper, an extended version of standard susceptible-infected model is proposed to consider the influence of medium access control mechanism on virus spreading in wireless sensor networks. Theoretical analysis shows that the medium access control mechanism obviously reduces the density of infected nodes in the networks, which has been ignored in previous studies. It is also found that the increasing of the network node density or node communication radius greatly increases the number of infected nodes. The theoretical results are confirmed by numerical simulations.