Performance Evaluation of IEEE 802.11p Physical Layer for Efficient Vehicular Communication

Intelligent transportation systems have gained huge interest world wide for providing safer, secure, and efficient communication systems for emergency, time management, and fuel-saving applications. Vehicular Ad-hoc Network technology provides a set of services and applications for the above requirements much effectively than other technologies. IEEE 802.11p standard is developed for handling the requirements and issues of vehicular communication that includes communication between Vehicle-to-Vehicle and Vehicle-to-Infrastructure. IEEE 802.11p employs orthogonal frequency division multiplexing technology for vehicular communication. This work evaluates the performance of 802.11p physical layer under extreme channel conditions. The quality of transmission is measured for different standard modulation techniques in terms of bit error rate with respect to varying signal-to-noise ratio.