Se Dong Kwon , Hyun Min Park , Kang Sun Lee

The KIPS Transactions:PartC, Vol. 11, No. 5, pp. 659-670, Oct. 2004
10.3745/KIPSTC.2004.11.5.659,   PDF Download:

Abstract

Handoff is one of the most important features for the user´s mobility in a wireless cellular communication system. It is related to resource reservation at nearby cells. Resource reservation to the new connection point should occur prior to handoff to enable the user to receive the data or services at the new location, at the same level of service as at the previous location. For the efficient resource reservation, mobility prediction has been reported as an effective means to decrease the call dropping probability and to shorten the handoff latency in a wireless cellular environment. A recently proposed algorithm, ZMHB, makes use of the history of the user´s positions within the current cell to predict the next cell. But, the prediction of the ZMHB algorithm is found to be 80～85% accurate for regular and random movements. In this paper, we propose a new improved ZMHB mobility prediction algorithm, which is called Detailed-ZMHB that uses detailed-zone-based tracking of mobile users to predict user movements. The effectiveness of the proposed algorithm is then demonstrated through a simulation.

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