The Effect of Radio Channel Modelling on the Network Performance in VANET

Abstract: Research in vehicle-to-vehicle communication and the Vehicular Ad Hoc Network (VANET) are two major fields of growing interest. The advent and recent development of these concepts foster evolution of the new paradigm of the transportation system, widely known as Intelligent Transport System (ITS). Among the numerous challenges in adopting VANET for ITS, modeling the radio channel is a vital one, because of the mobility of transmitters and receivers, low elevation of antennae, channel fading and statistically non-stationary of channels. A channel model has been proposed that agree with the above mentioned unique characteristics exist in VANET i.e. Lund model. In this work, we have focused on data delivery performance at the network layer of VANET under Lund propagation model and compared the performance with that of some of the existing models i.e. Three log distance model, Friis model and Nakagami model which are commonly used for analyzing conventional wireless communications. Average delay per packet and average packet loss ratio are the two parameters used for comparing the performance. Simulation results indicate that Lund Model yields mixed kind of results with all other propagation loss models in both highway and rural scenario in terms of average delay per packet and average packet loss ratio as a result of its more realistic nature.