Oh Jun Kwon, Nam Hoon Park, Young Sun Kim, Sang Ha Kim

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 8, pp. 2608-2619, Aug. 2000
10.3745/KIPSTE.2000.7.8.2608,   PDF Download:

Abstract

This paper proposes the Handover Scheme for the mobile terminal and describes the result of the performance analysis. In the conventional scheme of handover request, the withdrawal of terminal may occur because handover request is performed based on fixed signal level without considering network load and terminal mobility. The proposed scheme offers the minimization of withdrawal and handover blocking probability by means of the handover request of terminal based on the network load and terminal mobility. Conventional handover scheme has the sequential procedure that network performs resource check and path rerouting on the handover by MT(Mobile Terminal). Proposed handover scheme pre-processes the resource check before the handover request by predicting the handover request time so that handover latency can be reduced. Moreover, path optimization is executed after the completion of handover in order to reduce handover latency. The reduction of handover latency prevents the dropping of service by minimizing backward handover blocking. In summary, we propose the prediction of handover request time and decision method based on terminal mobility, validating the performance of proposed scheme considering various cases of simulation.

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