Coverage Differentiation Based Adaptive Tx-Power for Congestion and Awareness Control in VANETs
Document Type
Article
Publication Date
1-1-2018
Abstract
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.
Keywords
Adaptive beaconing, Adaptive transmit power, Congestion and awareness control, MPC, VANETs, Vehicular networks
Divisions
fsktm
Funders
High Impact Research (HIR) University of Malaya, Malaysia
Publication Title
Mobile Networks and Applications
Volume
23
Issue
5
Publisher
Springer Verlag