Affiliation:
1. Northeastern University
Abstract
Oriented to the actual requirements of roaming among heterogeneous networks, a handover decision scheme with ABC (Always Best Connected) supported was proposed in this paper. Network application types, access network and mobile terminal models were described. Plenty of factors such as access network conditions, application requirements, users preference in coding systems and providers, mobile terminals condition etc were considered comprehensively, an optimal handover scheme of N terminals among M access networks was designed based on improved artificial fish swarm algorithm. By gaming analysis, Pareto optimum under Nash equilibrium of user utility and network utility was achieved or approached to the found solution. Simulation results showed that the proposed scheme has better performance than existed schemes.
Publisher
Trans Tech Publications, Ltd.