Radio propagation model with obstacle effect and efficient bandwidth utilization for V2V VANET application services

Abstract

Intelligent transport system (ITS) has elevated with recent progress in communication systems. In vehicular ad hoc network (VANET) the environment is of changing nature which affects its performance. Hence evolution of smart and secure ITS demands a high throughput and reduced packet collision for network realization. Mean addition attenuation sophisticated fading model is used to implement existing radio propagation models which do not take into account the existence of a vehicle in the line of sight (LOS) as an obstacle. This affects the signal in terms of attenuation at receiving vehicle/device. This paper presents radio propagation and channel model that apprehends the effect of presence of a vehicle in the LOS as an obstacle and TDMA-FDMA based scheduling that enables channel hopping for efficient bandwidth utilization. The model considers highway conditions. The existing as well as proposed model is implemented and its throughput and packet collisions are computed. The effectiveness of the proposed system is judged by comparing the results obtained for existing and proposed system. Results obtained show that proposed model is more efficient compared to the existing system.