IEICE Transactions on Communications

IEICE Transactions on Communications 2008 E91-B(3):733-741; doi:10.1093/ietcom/e91-b.3.733

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Copyright © 2008 The Institute of Electronics, Information and Communication Engineers

Regular Section -- Papers -- Network

Design and Experimental Evaluation of a Scheme for Maximal Improvement of End-to-End QoS in Heterogeneous IP Networks

Dai YAMAMOTO¹, Hideki TODE², Toshihiro MASAKI² and Koso MURAKAMI²

¹ The author was with the Department of Information Networking, Graduate School of Information Science and Technology, Osaka University, Suita-shi, 565-0871 Japan. Now, he is with Fujitsu Laboratories Ltd., ² The authors are with the Department of Information Networking, Graduate School of Information Science and Technology, Osaka University, Suita-shi, 565-0871 Japan. E-mail: tode{at}ist.osaka-u.ac.jp

To guarantee strict Quality of Service (QoS) for real-time applications, we have previously proposed an output buffer control mechanism in IP routers, confirmed its effectiveness through simulations, and implemented a prototype. This mechanism can guarantee strict QoS within a single router. In this paper, we propose a control scheme of cooperation between IP routers equipped with this mechanism by using one of the signaling protocols. Our proposed scheme aims to stabilize End-to-End (E2E) flow delay within the target delay. In addition, our mechanism dynamically updates reserved resources between IP routers to improve E2E packet loss rate. We present an implemented design of our scheme and an empirical evaluation of the implementation. These results show quantitatively how our scheme improves the quality of video pictures.

Key Words: IP router, QoS, RSVP, end-to-end, non-QoS, heterogeneous

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Manuscript received April 4, 2007. Manuscript revised September 14, 2007.

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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to My Personal Archive Download to citation manager Request Permissions Google Scholar Articles by YAMAMOTO, D. Articles by MURAKAMI, K. Search for Related Content Social Bookmarking          What's this?