Exploiting short-range cooperation for energy efficient vertical handover operations

Xenofon Foukas, K. Kontovasilis, M. K. Marina

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


The availability of multiple collocated wireless networks using heterogeneous technologies and the multi-access support of contemporary mobile devices have allowed wireless connectivity optimization, enabled through vertical handover (VHO) operations. However, this comes at a high energy consumption on the mobile device, due to the inherently expensive nature of some of the involved operations. This work proposes exploiting short-range cooperation among collocated mobile devices to improve the energy efficiency of vertical handover operations. The proactive exchange of handover-related information through low-energy short-range communication technologies, like Bluetooth, can help in eliminating expensive signaling steps when the need for a VHO arises. A model is developed for capturing the mean energy expenditure of such an optimized VHO scheme in terms of relevant factors by means of closed-form expressions. This model is validated through simulations and results demonstrate that the proposed scheme has superior performance in several realistic usage scenarios considering important relevant factors, including network availability, the local density of mobile devices and the range of the cooperation technology.
Original languageEnglish
Title of host publicationNetwork and Service Management (CNSM), 2015 11th International Conference on
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages9
ISBN (Print)978-3-9018-8278-4
Publication statusPublished - 1 Nov 2015


  • mobile communication
  • mobility management (mobile radio)
  • Bluetooth
  • closed-form expressions
  • energy efficient vertical handover operations
  • handover-related information
  • local density
  • low-energy short-range communication technologies
  • mean energy expenditure
  • mobile devices
  • network availability
  • short-range cooperation
  • wireless networks
  • Handover
  • Manganese
  • Media
  • Mobile handsets
  • Protocols
  • Wireless communication


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