Dynamic QoS queuing control mechanism for multimedia differentiated services

Authors:
Hsu-Yang Kung;Mei-Hsien Lin;Fu-Wen Kuo
Affiliations:
Department of Management Information Systems, National Pingtung University of Science and Technology, 1 Hsueh Fu Rd., Nei Pu Hsiang, Pingtung 91207, Taiwan;Department of Computer Science and Information Engineering, National Chung Cheng University, Chia-Yi, Taiwan;Department of Management Information Systems, National Pingtung University of Science and Technology, 1 Hsueh Fu Rd., Nei Pu Hsiang, Pingtung 91207, Taiwan
Venue:
Information Sciences: an International Journal
Year:
2006

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Abstract

An essential goal of communication networks is to provide multimedia services with QoS streaming. A properly designed multimedia QoS system must reserve requested resources according to user QoS requirements and the available network resources. However, the static resource allocation among priority queues in DiffServ networks leads to insufficient resource usage when a burst occurs in one priority queue while other queues starve. This study presents a User-Oriented QoS Streaming System to achieve perceptible satisfaction based on novel streaming and media differentiation policies in DiffServ networks. This study also proposes that the Dynamic QoS Queue Mapping (DQ^2M) mechanism dynamically control queue scheduling by adaptively maximizing the utilization of queues and network resources according to the soft states of the DiffServ network. Evaluation results indicate that the proposed DQ^2M algorithm can improve the fairness and efficiency of resource utilization for low-priority queues.