A Comparative Study on Frequent Link Disconnection problems in VANETs

Abstract

Vehicular Ad-hoc network is an emerging technology, which takes vehicles as nodes and forms a wireless network. The topology of such network changes rapidly as the nodes are in continuous motion with different speeds, leading to some serious issues that must be handled correctly in order to make VANETs reliable. One of the main problems associated with VANETs is Frequent Link Disconnection. There have been many designed for VANETs but Rapid change in topology has made it really problematic to design a routing protocol for VANETs that is efficient and effective in all terms. In this paper, we compared the four major VANET routing protocols, GPGR, GPSR, GPCR & HarpiaGrid in terms of Frequent Link Breakage with respect to velocity of nodes and the number of nodes. The results have proved, HarpiaGrid and GPGR are the better routing protocols than other two. If overhead cost is ignored, HarpiaGrid gives the outstanding performance.