A survey of vertical handover decision algorithms in Fourth Generation heterogeneous wireless networks

  • Authors:
  • Xiaohuan Yan;Y. Ahmet Şekercioğlu;Sathya Narayanan

  • Affiliations:
  • Department of Electrical and Computer Systems Engineering, Monash University, Melbourne, Victoria, Australia;Department of Electrical and Computer Systems Engineering, Monash University, Melbourne, Victoria, Australia;School of Information Technology and Communication Design, California State University, Monterey Bay, California, United States

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2010

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Abstract

Vertical handover decision (VHD) algorithms are essential components of the architecture of the forthcoming Fourth Generation (4G) heterogeneous wireless networks. These algorithms need to be designed to provide the required Quality of Service (QoS) to a wide range of applications while allowing seamless roaming among a multitude of access network technologies. In this paper, we present a comprehensive survey of the VHD algorithms designed to satisfy these requirements. To offer a systematic comparison, we categorize the algorithms into four groups based on the main handover decision criterion used. Also, to evaluate tradeoffs between their complexity of implementation and efficiency, we discuss three representative VHD algorithms in each group.