Speed-based Admission Control for Streaming Service in Vehicular Networks
Date Issued
2008
Date
2008
Author(s)
Chang, Chih-Lei
Abstract
In vehicular networks, roadside units are often placed along the road every fixed interval for Internet access. But due to the limitation of sparse deployment of roadside units, vehicles can only connect to roadside units intermittently. For soft real-time streaming services over this architecture, how to provide persistent quality of service across multiple roadside units is an important task. However, the inherent mobility characteristics of vehicles have made this work more complicated. n this thesis, we propose a mechanism using periodic speed-based admission control in roadside units for resource reservation and avoidance of frequent service interruption resulting from high dynamics of vehicles. We evaluate the performance of our mechanism via simulation and show that interruption rate is decreased by using our mechanism. We also discuss the effect of vehicle density to our mechanism, as well as tradeoff between interruption rate and system utilization.
Subjects
streaming
vehicular network
admission control
speed-based
Type
thesis
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