Mobile Networks and Applications

, Volume 23, Issue 5, pp 1194–1205 | Cite as

Coverage Differentiation Based Adaptive Tx-Power for Congestion and Awareness Control in VANETs

  • Syed Adeel Ali ShahEmail author
  • Ejaz Ahmed
  • Feng Xia
  • Ahmad Karim
  • Muhammad Ahsan Qureshi
  • Ihsan Ali
  • Rafidah MD Noor


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.


Vehicular networks Congestion and awareness control Adaptive transmit power Adaptive beaconing MPC VANETs 



The authors would like to thank the High Impact Research (HIR) University of Malaya, Malaysia for their support.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Department of Computer System and TechnologyUniversity of MalayaKuala LumpurMalaysia
  2. 2.Department of Computer Science & Information TechnologyUniversity of Engineering & TechnologyPeshawarPakistan
  3. 3.Department of Information TechnologyBahauddin Zakariya UniversityMultanPakistan
  4. 4.School of SoftwareDalian University of TechnologyDalianChina

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