An Intellectual Routing Protocol for Connectivity Aware Cross Layer Based VANETs

Vehicular ad hoc networks (VANETs) are the newer technology which is used for maximum of the intelligent transmission system (ITS)-based application. Due to the high-speed dynamic nature of VANETs, link failure and data loss can occur during communication between vehicles. Several routing protocols are proposed in VANETs but still constructing the effective routing protocol is still an open research area. In this paper, hybrid routing protocol is recommended, namely cross-layer in connectivity-aware greedy routing protocol (CLCAGRP). This protocol is subdivided into three categories. They are greedy-based routing protocol, connectivity-aware greedy routing protocol (CAGRP), and cross-layer in connectivity-aware greedy routing protocol (CLCAGRP). These methods are mainly used to improve network stability by reducing the connectivity failures and packet loss during transmission. Cross-layer approach is used to find the optimal path between the sources to the destination at the time of data transfer. In order to evaluate the performance of the proposed CLCAGRP, the parameters which are calculated in the simulation evaluation are packet delivery ratio, energy efficiency, network throughput, packet loss, and routing overhead. The results of the proposed CLCAGRP are compared with the earlier research works such as E-GRP and ACO-GRP. The outcome proves that the proposed CLCAGRP achieves (16%) better packet delivery ratio, (15%) better energy efficiency, (600 Kbps) better throughput, (330packets) lower packet loss, (1100 packets) lower overhead when compared with the earlier works.