Dynamic Handover Scheme for WiMAX

Authors:
Jin-Long Wang;Shu-Yin Chiang
Affiliations:
Department of Information and Telecommunications Engineering, Ming Chuan University, Taipei, Taiwan 11103;Department of Information and Telecommunications Engineering, Ming Chuan University, Taipei, Taiwan 11103
Venue:
KES '09 Proceedings of the 13th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems: Part II
Year:
2009

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Abstract

WiMAX is an emerging technology based on the 802.16 standards to provide high speed and broadband wireless access for mobile stations. Handover is a key operation influencing the quality of communication services. In this paper, the scheme of choosing the suitable base station with the best service for a mobile station in a WiMAX network is studied. A new scheme based on fuzzy logic is proposed to employ the important traffic criteria, including bandwidth, dropping rate, blocking rate, and signal strength. Finally, the simulation is used to investigate the performance of proposed scheme. The simulation results show that the proposed schemes have better performance than conventional schemes, and can achieve the higher bandwidth utilization, the lower blocking rate for new calls, and the lower dropping rate for handover calls.