Research Area:  Vehicular Ad Hoc Networks
The use of Information and Communication Technology (ICT) as a copilot for the drivers has a potential to improve traffic safety and efficiency. A key challenge in integrating ICT in vehicular networks is to provide the mechanisms for the delivery of safety messages called beacons. In particular, finding the trade-off between providing sufficient coverage and controlling channel congestion remains the focus in the stipulated amendments for safety message transmissions. In this paper, we handle this trade-off by proposing a Multi-metric Power Control (MPC) approach, which uses application requirements and channel states to determine a transmit power for safety messages. The MPC gives a best-effort approach to satisfy the coverage range requirement of a message as specified by the application. Moreover, the concept distinguishes among message types to provide coverage differentiation. We show that the best-effort approach of providing coverage for different messages can control congestion and as a result improve awareness by minimizing beacon collisions. The performance analysis of MPC using discrete event simulation confirms its practicality.
Author(s) Name:  Syed Adeel Ali Shah,Ejaz Ahmed,Feng Xia,Ahmad Karim,Muhammad Ahsan Qureshi, Ihsan Ali and Rafidah Md Noor
Journal name:  Mobile Networks and Applications
Publisher name:  ACM
Volume Information:  Vol. 23,Issue 5,October 2018
Paper Link:   https://dl.acm.org/doi/10.1007/s11036-016-0777-6