Dimensioning and Layout Planning of Integrated VANET-WSN for Intelligent Transportation

Abstract

The future development of Intelligent Transportation relies heavily on a “smart” road as the fundamental infrastructure. The Integrated Vehicular Ad Hoc Network (VANET)–Wireless Sensor Network (WSN) has provided a promising network architecture solution for building smart roads. Besides, WSN can enhance the road safety and provide other roadside services, monitor road conditions, and report to drivers by using sensors, which are also deployed at roadside together with the Road Side Units (RSUs) in VANETs. This paper investigates the optimal roadside infrastructure Dimensioning and Layout Planning (DLP) problem under the Integrated VANET-WSN architecture to achieve total coverage along the road by considering communication constraints, coverage requirement, connectivity, and network characteristic between the RSUs and the sensors. We formulate the problem as an Integer Linear Programming (ILP) and solve it by Gurobi. Simulation results provide an optimal layout solution, and the results show that the proposed architecture is cost-effective and scalable in practice.