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TPDS
2002

Adaptive Bandwidth Reservation and Admission Control in QoS-Sensitive Cellular Networks

10 years 1 months ago
Adaptive Bandwidth Reservation and Admission Control in QoS-Sensitive Cellular Networks
How to keep the probability of hand-off drops within a prespecified limit is a very important Quality-of-Service (QoS) issue in cellular networks because mobile users should be able to maintain ongoing sessions even during their hand-off from one cell to another. In order to keep the hand-off dropping probability below a prespecified target value (thus providing a probabilistic QoS guarantee), we design and evaluate predictive and adaptive schemes for bandwidth reservation for the hand-offs of ongoing sessions and the admission control of new connections. We first develop a method to estimate user mobility based on an aggregate history of hand-offs observed in each cell. This method is then used to probabilistically predict mobiles' directions and hand-off times in a cell. For each cell, the bandwidth to be reserved for hand-offs is calculated by estimating the total sum of fractional bandwidths of the expected hand-offs within a mobility-estimation time window. Three different ad...
Sunghyun Choi, Kang G. Shin
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TPDS
Authors Sunghyun Choi, Kang G. Shin
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