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An Efficient QoS-Aware Bandwidth Re-Provisioning Scheme in a Next Generation Wireless Packet Transport Network  

Park, Jae-Sung (수원대학교 IT대학 인터넷정보공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.1A, 2006 , pp. 30-37 More about this Journal
Abstract
In this paper, we propose a QoS-aware efficient bandwidth re-provisioning scheme in a next generation wireless packet transport network. At the transport network layer, it classifies the traffic of the radio network layer into a real time class and a non-real time class. Using an auto-regressive time-series model and a given packet loss probability, our scheme predicts the needed bandwidth of the non-real time class at every re-provisioning interval. Our scheme increases the system capacity by releasing the unutilized bandwidth of the non-real time traffic class for the real-time traffic class while insuring a controllable upper bound on the packet loss probability of a non-real time traffic class. Through empirical evaluations using the real Internet traffic traces, our scheme is validated that it can increase the bandwidth efficiency while guaranteeing the quality of service requirements of the non-real time traffic class.
Keywords
Bandwidth Management; Traffic Measurement; Ouality of Service(OoS) Class; Autoregressive Model;
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