Traffic management for video streaming service over diff-serv

Authors:
Sang-Hyun Park;Jeong-Sik Park;Jae-Young Pyun
Affiliations:
Sunchon National University, Sunchon, Korea;Sungkonghoe University, Seoul, Korea;Chosun University, Gwangju, Korea
Venue:
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Year:
2005

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Abstract

The Internet Engineering Task Force (IETF) has proposed the Diff-Serv model with firm delay and bandwidth guarantees. In the Diff-Serv model, it is essential that the traffic management algorithm be carefully designed to guarantee the QoS requirements of real-time applications such as video services. In this paper, we propose a new traffic management scheme for the video service over the Diff-Serv network. In the proposed scheme, when a new video flow is requested, the bandwidth broker decides if the Diff-Serv network can provide the video flow with its negotiated QoS without violating the QoS guarantees of existing flows in the network by calculating the loss probability of the aggregate video traffic. Experimental results show that the proposed method can determine the number of acceptable flows more precisely and efficiently than other existing methods.