Predictive mobility support for QoS provisioning in mobile wireless environments

Abdul Rahman Aljadhai, Taieb F. Znati

Research output: Contribution to journalArticlepeer-review

134 Citations (Scopus)


With the proliferation of wireless networks technologies, mobile users are expected to demand the same quality of service (QoS) available to fixed users. This paper presents a predictive and adaptive scheme to support timed-QoS guarantees in pico- and micro-cellular environments. The proposed scheme integrates the mobility model into the service model to achieve efficient network resource utilization and avoid severe network congestion. The mobility model uses a probabilistic approach to determine the most likely cluster to be visited by the mobile unit. The admission control is invoked when a new call arrives or an existing call performs a handoff to verify the feasibility of supporting the call. The performance of the proposed schemes is compared to the shadow cluster scheme (Levine et al., 1997). The performance of the proposed scheme under different traffic patterns is also presented.

Original languageEnglish
Pages (from-to)1915-1930
Number of pages16
JournalIEEE Journal on Selected Areas in Communications
Issue number10
Publication statusPublished - Oct 2001
Externally publishedYes


  • Mobile computing
  • Mobility models
  • QoS guarantees
  • Wireless networks

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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