6th International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications

Research Article

A Coordinated Group Decision for Vertical Handovers in Heterogeneous Wireless Networks

Download32 downloads
  • @INPROCEEDINGS{10.4108/icst.mobilware.2013.254265,
        author={Mario Pink and Michael Sprejz and Hartmut Koenig},
        title={A Coordinated Group Decision for Vertical Handovers in Heterogeneous Wireless Networks},
        proceedings={6th International Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications},
        publisher={IEEE},
        proceedings_a={MOBILWARE},
        year={2014},
        month={7},
        keywords={vertical handover coordinated handover decision mobile collaborative applications simple additive weighting handover},
        doi={10.4108/icst.mobilware.2013.254265}
    }
    
  • Mario Pink
    Michael Sprejz
    Hartmut Koenig
    Year: 2014
    A Coordinated Group Decision for Vertical Handovers in Heterogeneous Wireless Networks
    MOBILWARE
    IEEE
    DOI: 10.4108/icst.mobilware.2013.254265
Mario Pink1,*, Michael Sprejz2, Hartmut Koenig2
  • 1: Brandenburg University of Technology Cottbus, Germany
  • 2: Brandenburg University of Technology Cottbus
*Contact email: pink@informatik.tu-cottbus.de

Abstract

Cooperation and interactions of mobile users is a characteristic feature of mobile collaborative applications. The users are located in different mobile communication networks or move in or among them, respectively. This requires horizontal and vertical handovers. The latter is required when the networks use different network technologies. Usually each mobile device independently chooses the most appropriate network for its purposes to switch to. In group-oriented applications this may lead to an uncoordinated network selection and as consequence to increased energy consumption. In this paper, we present a distributed vertical handover decision algorithm that coordinates the selection of the network among the mobile devices in order to ensure an optimal quality of service for the collaborative application and a low energy consumption of the involved mobile devices. The network selection is based on the calculation of a group benefit for each alternative network using the Simple Additive Weighting (SAW) algorithm. The feasibility of the algorithm is evaluated regarding varying group sizes and resource requirements.