Enhanced Bandwidth Efficient Cluster Based Multicasting Protocol in VANETs

In Vehicular Adhoc Networks (VANETS), Data Dissemination is a challenging task. There are number of techniques, types and protocols available for disseminating the data but in order to preserve limited bandwidth and to disseminate maximum data over networks makes it more challenging. These protocols are classified as broadcasting, multicasting and geocasting based protocols. Multicasting based protocols are found to be best for conserving the bandwidth. One such protocol named Bandwidth Efficient Acknowledgment Based Multicasting Protocol ( BEAM) exists that improves the performance of VANETS by reducing the number of in-network message transactions and thereby efficiently utilizing the bandwidth during an emergency situation. But this protocol may result in multicar chain collision as there is no V2V communication. So, this paper proposes a new protocol named Enhanced Bandwidth Efficient Cluster Based Multicasting Protocol (EBECM) that will overcome the limitations of existing BEAM protocol. Along with this Simulation results will show the improved performance of EBECM in terms of Throughput, PDR and Routing overhead when compared with BEAM protocol.