Clustering Based Single-hop and Multi-hop Message Dissemination Evaluation Under Varying Data Rate in Vehicular Ad-hoc Network

摘要

Enhancement in the existing vehicular communication technologies is important not only for efficient utilization of the available bandwidth but also for event-driven safety message dissemination in Vehicular Ad-hoc Network (VANET). Some of its unique characteristics like geographically constrained topology, unpredictable vehicle density, varying channel capacity etc. constitute VANET as a distinct research field. In this paper we compare and evaluate the performance of clustering based single-hop and multi-hop network for varying data transfer rates in the IEEE 802.11p standard by means of simulations using NS-2. Simulations are performed for highway scenario in vehicle-to-vehicle mode. Results are presented for various Quality of Service parameters such as throughput, packet delivery ratio and end-to-end delay. Significant observations have been made which would serve as an input to enhance further research in this field.