A Cost Effective RSU Placement Strategy for Secured Communication in VANET
V. Gokula Krishnan1, N. Sankar Ram2
1V. Gokula Krishnan, PhD Research Scholar, Faculty of Computer Science & Engineering Sathyabama University, Chennai India.
2N. Sankar Ram, Research Supervisor, Faculty of Computer Science & Engineering Sathyabama University, Chennai India.
Manuscript received on March 13, 2015. | Revised Manuscript received on March 09, 2015. | Manuscript published on March 15, 2015. | PP: 1-5 | Volume-3 Issue-4, March 2015. | Retrieval Number: D0811033415/2015©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Vehicular ad hoc networks (VANETs) enable vehicles to communicate with each other but require efficient and robust routing protocols for their success. In this proposed system, we exploit the infrastructure of Road Side units (RSUs) to efficiently and reliably route packets in VANETs. This system operates by using vehicles to carry and forward messages from a source vehicle to carry and forward messages from a source vehicle to a nearby RSU and, if needed, route these messages through the RSU network and, finally send them from an RSU to the destination vehicle. In that proposed system is mostly critical for users who are far apart and want to communicate using their vehicles’ onboard units. It accounts for both access patterns in our placement strategy and formulate this placement problem via an integer linear programming model such that the aggregate throughput in the network can be maximized. The performance of proposed system evaluated using the ns2 simulation platform. The results show that proposed strategy leads to the best performance as compared with the uniformly distributed placement and the hot spot placement. More importantly, this solution needs the least number of RSUs to achieve the maximal aggregate throughput in the network, indicating that our proposed system is indeed a cost effective yet highly efficient placement strategy for vehicular networks.
Keywords: Vehicular ad hoc Network (VANET), Roadside units (RSU), Distributed hash table (DHT), Dedicated short communication (DSR), Capacity Maximization Placement (CMP).