Impact of Inter Vehicle Communication (IVC) on network and road traffic simulation using bidirectional coupled network through one hop broadcasting technique

摘要

Vehicular Adhoc Network (VANET) is a autonomous wireless network comprising of moving vehicles. A small communication unit is installed in the devices that are capable of transmitting its GPs position and gather important information from other vehicles and road side junctions. . No base station is needed and network supports low to moderate mobility. Routes are preferred being obtained on demand before a node starts communicating with other. . Due to very high mobility and unpredictable signaling conditions, packets in such network are prone to collisions and signal strength at the receiver is weaker due to multipath fading and shadow fading. In this paper our goal is to .incorporate all the real time parameters in VANET into simulation and to evaluate the performance of the system with the help of one hop broadcasting technique .Based on this we develop the simulation framework VEINS(vehicles in network simulation) composed of the network simulator OMNET and road traffic simulator SUMO .Hence we propose a bidirectional coupled inter vehicular communication where traffic model is generated using microscopic traffic generation tool of Sumo and simulation is performed on real time 802.16.4 nodes . Generally 802.16.4 is used in sensor network for data dissipation from source nodes to sink node. However we use this protocol for its low energy mode Node broadcast the data only to a single hop .Hence no routing is involved. Nodes upon receiving information from their neighbor they accumulate a neighbor table along with delay ,signal strength and neighbor ID.We can advance the state of the art in performance evaluation of IVC and provide means to evaluate better results more accurately.