Vertical Handover Decision Strategies in Heterogeneous Wireless Networks

Abstract — The next generation wireless networks comprises of mobile users moving between heterogeneous networks, using terminals with multiple access interfaces and services. The most important issue in such environment is ABC (Always Best Connected) i.e. allowing the best connectivity to applications anywhere at any time. For always best connectivity requirement various vertical handover strategies for decision making have been proposed. This paper provides an overview of the most interesting and recent strategies. Index Terms — Vertical handover, Heterogeneous wireless networks, Handover decision. I