Region Based Bandwidth Reservation Scheme for Handoff Calls in Cellular Networks
Date Issued
2006
Date
2006
Author(s)
Chou, Yi-Chung
DOI
en-US
Abstract
Today users are expected to move around during communication sessions due to the developing of personal communication system, but it has the handoff problem seriously. Many bandwidth-reservation schemes have either high accuracy with low feasibility or high feasibility with low accuracy. Our objective is to design an aggregated reservation scheme which is feasible and also get high accuracy of predicting.
We composite per-mobile and local scheme to develop a new scheme region based bandwidth reservation scheme (RBBR). In order to reach accuracy we adopt the dividing method, predicting of incoming and outgoing together, and dynamic recording function. Besides, regional division to decrease the complexity of locating and computation; multiple recording reference decrease the loading of record update to reach feasibility.
In the main result of our experiment, RBBR performs lowest handoff dropping probability than predicting of fix-based, direction-based, and cell-based reservation scheme, furthers RBBR get highest accuracy of prediction in simulation too. The simulation results verify that RBBR has good tradeoff between new call and handoff dropping probability.
Subjects
通話交遞
頻寬保留
預測
蜂巢式網路
handoff
reservation
prediction
cellular
Type
thesis
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