A mobility prediction handover algorithm for effective channel assignment in wireless ATM

Recently, research for wireless ATM systems has progressed effectively to extend broadband communication networks to the wireless area. In wireless ATM, the radius of a cell becomes smaller and causes frequent handover. This causes low QoS and the disconnection of the call if there are insufficient channels for handover. In order to prevent this, this paper suggests a handover algorithm that can guarantee quality of service (QoS) easily, and do channel assignment effectively. By considering the fact that most users have a constant movement pattern, the channels needed for handover can be reserved, so that the required QoS is maintained during handover. The suggested algorithm decreases the dropping probability of handover calls and makes the channel allocation schemes more efficient.

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