Routing performance of mobile ad hoc network in urban street-grid environment using non-line-of-sight propagation model

In this paper, effects of non-line of sight propagation in an urban-street environment on routing performance in mobile ad hoc network are investigated. We implement a reliable propagation model in network simulator (NS2) named peer to peer propagation model which has been proved to be suitable for our street-grid environment by taking into account non-line of sight paths. Our simulation result shows that multiple reflected signals in an urban street grid environment are significant, and received signal strength cannot not be arbitrarily chosen or underestimate.