关键词: 位置预测,越区切换,频繁轨迹,运动规则

Abstract: In order to meet the future mobile cellular network whose cellular is small,handover is frequent and support a large number of users and the demand of the multimedia applications,this article proposed a new prediction-based handover scheme on the basis of analyzing the position prediction and handover schemes.The basic idea is:(1) Mining frequent trajectories from a large number of history trajectories of mobile users;(2)Generating movement rules from frequent trajectories;(3)Applying these movement rules to decide whether to handoff the process of communication to another station or not. We used the simulation software to simulate the mentioned scheme and compared it with the traditional handover scheme,the mentioned scheme reduces the unnecessary handover times and error rate and improves accuracy handover rate.To a certain extent,the mentioned scheme reduces the communication cost and improves the capacity of communication system and QoS.

Key words: Location prediction,Handover,Frequent trajectory,Movement rules