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Design and Empirical Evaluation of Control Scheme for End-to-End Delay Stabilization and Packet Loss Improvement in Broadband IP Network

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4 Author(s)
Dai Yamamoto ; Fujitsu Labolatories, Ltd., Department of Information Networking, Osaka University, Yamadaoka 1-5, Suita-shi, Osaka 565-0871, Japan. E-mail: yamamoto.dai@ist.osaka-u.ac.jp ; Hideki Tode ; Toshihiro Masaki ; Koso Murakami

To guarantee Quality of Service(QoS) for real-time applications strictly, we have proposed an output buffer control mechanism in IP routers, confirmed its effectiveness through simulations and implemented a prototype. This mechanism can guarantee QoS strictly within single router. In this paper, we propose the control scheme of mutual cooperation between IP routers equipped with the above-mentioned mechanism by using one of the signaling protocols. Our proposed scheme aims to stabilize End-to-End (E2E) delay of a flow within target delay. Also, reserved resources are dynamically updated between IP routers with our mechanism to improve E2E packet loss rate. We perform the implemental design of our scheme and empirical evaluation through the implementation. As one of results, we validated quantitatively that our scheme improves the quality of video picture.

Published in:

Computer Communications and Networks, 2007. ICCCN 2007. Proceedings of 16th International Conference on

Date of Conference:

13-16 Aug. 2007