MobileWireless Middleware, Operating Systems, and Applications. Second International Conference, Mobilware 2009, Berlin, Germany, April 28-29, 2009 Proceedings

Research Article

IEEE 802.21 Assisted Seamless and Energy Efficient Handovers in Mixed Networks

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  • @INPROCEEDINGS{10.1007/978-3-642-01802-2_3,
        author={Huaiyu Liu and Christian Maciocco and Vijay Kesavan and Andy Low},
        title={IEEE 802.21 Assisted Seamless and Energy Efficient Handovers in Mixed Networks},
        proceedings={MobileWireless Middleware, Operating Systems, and Applications. Second International Conference, Mobilware 2009, Berlin, Germany, April 28-29, 2009 Proceedings},
        proceedings_a={MOBILWARE},
        year={2012},
        month={5},
        keywords={IEEE 802.21 Mixed Networks Heterogeneous Handovers Energy Efficient Handovers},
        doi={10.1007/978-3-642-01802-2_3}
    }
    
  • Huaiyu Liu
    Christian Maciocco
    Vijay Kesavan
    Andy Low
    Year: 2012
    IEEE 802.21 Assisted Seamless and Energy Efficient Handovers in Mixed Networks
    MOBILWARE
    Springer
    DOI: 10.1007/978-3-642-01802-2_3
Huaiyu Liu1,*, Christian Maciocco1,*, Vijay Kesavan1,*, Andy Low2,*
  • 1: Intel
  • 2: BT Innovate, Malaysia Research Center
*Contact email: huaiyu.liu@intel.com, christian.maciocco@intel.com, vijay.s.kesavan@intel.com, andy.low@bt.com

Abstract

Network selection is the decision process for a mobile terminal to handoff between homogeneous or heterogeneous networks. With multiple available networks, the selection process must evaluate factors like network services/conditions, monetary cost, system conditions, user preferences etc. In this paper, we investigate network selection using a cost function and information provided by IEEE 802.21. The cost function provides flexibility to balance different factors in decision making and our research is focused on improving both seamlessness and energy efficiency of handovers. Our solution is evaluated using real WiFi, WiMax, and 3G signal strength traces. The results show that appropriate networks were selected based on selection policies, handovers were triggered at optimal times to increase overall network connectivity as compared to traditional triggering schemes, while at the same time the energy consumption of multi-radio devices for both on-going operations as well as during handovers is optimized.