Diffusion approximation model for the distribution of packet travel time at sensor networks

Abstract

We propose a model to estimate the probability density function of the distribution of a packet travel time in a multihop wireless sensor network. The model is based on diffusion approximation and it takes into consideration the heterogeneity of the propagation medium and of the distribution of relay nodes. The modeled system parameters, e.g. the packet loss probability or the network topology, may depend on time. © 2008 Springer Berlin Heidelberg.