Mobility-aware call admission control algorithm in vehicular WiFi networks

Younghyun Kim, Sangheon Pack, Wonjun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)


Resource management in vehicular WiFi networks is an interesting and challenging issue. In this paper, we propose a mobility-aware call admission control (MA-CAC) algorithm where different admission control policies are employed depending on the mobility. Specifically, when a vehicle is static, a handoff priority scheme with guard channels is examined to protect vehicular handoff users. On the other hand, for a moving vehicle, no guard channels for handoff users are allocated for maximizing channel utilization since there are no vehicular handoff users. By means of Markov chains, we evaluate the MACAC algorithm in terms of new call blocking probability, handoff call dropping probability, and channel utilization. Numerical results demonstrate that the MA-CAC algorithm can lower the handoff call dropping probability while maintaining high channel utilization.

Original languageEnglish
Title of host publication2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781424456383
Publication statusPublished - 2010
Event53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States
Duration: 2010 Dec 62010 Dec 10

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


Other53rd IEEE Global Communications Conference, GLOBECOM 2010
Country/TerritoryUnited States
CityMiami, FL

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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