Predicting Link Failure in Vehicular Communication System Using Link Existence Diagram (LED)

Abstract

Link failure is a major problem in vehicular communication system because of high mobility of vehicles in the network. By predicting the link failure at an early stage the performance of the system can be improved. In this paper, we proposed a data forwarding technique by predicting the link failure in a route by generating a Link Existence Diagram (LED). LED shows whether a link exist between the vehicles or not. Second, we have calculated the Link Expiration Time (LET) between the two vehicles in a route. Third, we have generated a Time-Link diagram to synchronize LET with the data transmission time. Finally, by updating the LET and checking the existence of LET, we generate the LED. Simulations are performed to evaluate the performance of the proposed protocol.