TRAFFIC CONTROLLED-DEDICATED SHORT RANGE COMMUNICATION: A SECURE COMMUNICATION USING TRAFFIC CONTROLLED DEDICATED SHORT RANGE COMMUNICATION MODEL IN VEHICULAR AD HOC NETWORKS FOR SAFETY RELATED SERVICES

Abstract

To increase the road safety and secure communicatio n among the vehicles in the network environment, Dedicated Short Range Communication (DSRC) is followed. Nowadays, research over DSRC is dramatically increased for enhancing the road safety applications. The main task of DSRC is to protect the vehicles by communicating the wa rning message regarding the vehicle changing conditions, traffic occurrence and dangers over the road in the network . So, it is necessary to maintain the accurate communication ti mely with high reliability by implementing the appr opriate protocol. In the literature there are several metho ds which provided specifications defined in the phy sical layer and the Medium Access Control (MAC) layer. In those methods, current IEEE 802.11p MAC is not able to provide p redictable Quality of Service (QoS) for high-priority safety s ervices. Motivated by the fact that the existing wo rk provided three levels of safety-related broadcast services, but di d not focus on current traffic load conditions, in this study, we plan to present Traffic Controlled DSRC (TC-DSRC) model to analyze and categorize the traffic patterns in the vehicular communication for safety related application. A new algorithm is presented to evaluate the process of traffic controlled DSRC model for secure communication in VANET. The dedicated short range communication broadcast of messages is sent to all the vehicles at a specific instance for defined radius on the traffic zone. Multiple traff ic load conditions are categorically stated to handle the vehicular safety with quick response time. Integrating these two pe rformance metrics (i.e., quick response time and security), by using the proposed algorithm, the traffic patterns are ca tegorized for communication between vehicles to provide the safet y measure. In addition, our proposed scheme with th e categorization using traffic patterns improves the network performance by deriving a specific pattern. Compared with the recent standard of 802.11p wireless vehicular n etworks the scheme proposed in this study is more r obust and operate under vehicle-to-vehicle mode in order to a ddress the secure communication between the vehicles. The effectiveness of secure communication in vehicular ad hoc network with varied vehicular speed and changing network topology is evaluated numerically using realistic s imulation data obtained from traffic engineering sy stems.