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Enhancement in the Reliability of Vehicular Communication System for Road Side Area

Vehicular Ad-hoc Network (VANET) is developed to provide vehicular communication with reliable and cost-efficient data distribution. With the timely addition of VANET developments, a system framework is established, currently known as Vehicular Communication System (VCS). The Vehicular Communication System is a cooperative engagement of Vehicle Nodes with efficient utilization of OnBoard Unit (OBU), Cluster Head (CH), Road Side Unit (RSU) and Infrastructure Domain Unit (IDU). This system is applicable for event prediction and reduction of many things like fuel utilization, traveling time, road area congestion, accident, etc. In this work, firstly the reliability and scalability of the Vehicular Communication System are analyzed for the clustering formation by various vehicular communication technologies. In this analysis, it is found that reliability and scalability are higher of Optical Wireless Communication (OWC), Satellite communication, Worldwide Interoperability for Microwave Access, Long-range and 4G-5G technologies. During analyzing reliability and scalability for VCS, it is also found that the 802. 11p standard can increase the transmission power by tempering Contention Window Size when congestion is increased in the control channel. The efficiency and reliability of the VCS can be enhanced if the transmission power is increased when data is transferred from a single node of the CH. Increasing the transmitting power of the CH source node increases the interference power in the broadcasting of the receiver also. Here comes the need in CH to understand how to adjust transmitting power between multiple nodes and rate the channel access with a single node to control channel congestion. For this here two previously available metrics BRM and BEM are upgraded. Based on this, there is an enhancement in reliability with increasing efficiency. This performance enhancement is evaluated using Network Simulator.