CBAODV: An Enhanced Reactive Routing Algorithm to Reduce Connection Breakage in VANET N. Arulkumar and E. George Dharma Prakash Raj Abstract Vehicular ad hoc networking (VANET) is a network that helps a vehicle to send information to nearby vehicles, and messages can be routed from vehicle to vehicle. In VANET, connection breakage (CB) is an important issue in the existing routing protocols such as ad hoc on-demand distance vector (AODV), DSR, and DSDV. In this paper, an enhanced reactive routing algorithm to reduce CB is proposed called as CBAODV based on AODV. The CBAODV allows route dis- covery and route maintenance, and it also reduces the CB. The experimental results are very promising as the proposed algorithm exhibits superior performance with respect to traditional AODV routing algorithm in terms of QoS metrics like end-to- end delay and packet delivery ratio. NS2 and MOVE tools are used as simulator to simulate the network and to prove the effectiveness of the research work. Keywords VANET Á Reactive routing protocol Á AODV Á Connection breakage Á NS2 Á MOVE 1 Introduction In vehicular ad hoc networking (VANET), each vehicle takes on the role of sender, receiver, and router to broadcast information. It is a technology that is becoming a very interesting domain for research in computer science. The steps are taken to improve the quality of the data transmission and to reduce the risk in connection breakage (CB) or link failure (LF) in VANET. This breakage in connection is also referred as link death. The breakage can happen when a vehicle is communicating N. Arulkumar (&) Department of Computer Science, Bishop Heber College, Trichy 620017, India e-mail: arulkumar@live.com E. George Dharma Prakash Raj Department of Computer Science and Engineering, Bharathidasan University, Trichy 620023, India e-mail: georgeprakashraj@yahoo.com © Springer India 2015 L.P. Suresh et al. (eds.), Artificial Intelligence and Evolutionary Algorithms in Engineering Systems, Advances in Intelligent Systems and Computing 325, DOI 10.1007/978-81-322-2135-7_57 533