A location-based vertical handoff decision algorithm for heterogeneous mobile networks

Jie Zhang, Chun Bun Henry Chan, Victor C.M. Leung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

31 Citations (Scopus)


Next-generation mobile communication systems will provide "always best connected" services to mobile users via cellular networks that provide wide area coverage for global access, complemented by broadband wireless networks (BWNs) at hotspots to accommodate higher traffic intensities. In such a heterogeneous network, a user entering a hotspot has the option to handoff to the BWN for better services. However, each vertical handoff also causes some momentary service degradations. Since the enhancement of user satisfaction by a vertical handoff depends on the user's sojourn time in the BWN, the handoff decision should consider the user's location and mobility, in order to optimize the user's satisfaction. In this paper, we propose a novel vertical handoff decision algorithm based on dynamic programming, utilizing the location information of mobile users. Simulation results show the effectiveness of the algorithm compared with other recently proposed schemes.
Original languageEnglish
Title of host publicationIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
Publication statusPublished - 1 Dec 2006
EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
Duration: 27 Nov 20061 Dec 2006


ConferenceIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
Country/TerritoryUnited States
CitySan Francisco, CA


  • B3G/4G networks
  • Heterogeneous networks
  • Location-based service
  • Vertical handoff decision

ASJC Scopus subject areas

  • Engineering(all)

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