چکیده (انگلیسی):

To increase the road safety and secure communication 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 warning 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 timely with high reliability by implementing the appropriate
protocol. In the literature there are several methods which provided specifications defined in the physical layer and the
Medium Access Control (MAC) layer. In those methods, current IEEE 802.11p MAC is not able to provide predictable
Quality of Service (QoS) for high-priority safety services. Motivated by the fact that the existing work provided three
levels of safety-related broadcast services, but did 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 traffic load conditions are
categorically stated to handle the vehicular safety with quick response time. Integrating these two performance metrics
(i.e., quick response time and security), by using the proposed algorithm, the traffic patterns are categorized for
communication between vehicles to provide the safety measure. In addition, our proposed scheme with the
categorization using traffic patterns improves the network performance by deriving a specific pattern. Compared with
the recent standard of 802.11p wireless vehicular networks the scheme proposed in this study is more robust and
operate under vehicle-to-vehicle mode in order to address 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 simulation data obtained from traffic engineering systems.