| Project/Area Number |
12450156
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
情報通信工学
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
OIE Yuji Faculty of Computer Science and Systems Engineering, Professor, 情報工学部, 教授 (50167293)
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| Co-Investigator(Kenkyū-buntansha) |
HORI Yoshiaki Faculty of Design, Kyushu Institute of Design, Research Associate, 芸術工学部, 助手 (90264126)
IKENAGA Takeshi Faculty of Computer Science and Systems Engineering, Research Associate, 情報工学部, 助手 (50284716)
KAWAHARA Kenji Faculty of Computer Science and Systems Engineering, Associate Professor, 情報工学部, 助教授 (40273859)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 2001: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2000: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | Multiclass / Internet / Quality of Services / Diff Serv / Routing / Priority Control |
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| Research Abstract |
(1) Study on traffic policing and priority control for multi-class traffic
Supposing the network with priority control for multi-class traffic, we first propose mechanisms for policing, marking and scheduling at ingress routers and evaluate these performance by both analytical approach and computer simulation. Through some numerical results, we investigated achievable Quality of Service(QoS) of each traffic type in the network. We then propose mechanisms for inferring QoS in some network and explained its effectiveness.
(2) Study on the routing mechanism for multi-class traffic
We first investigate the routing mechanism which effectively allocates bandwidth to each real-time traffic and improves throughput of best-effort traffic such as TCP. In the mechanism, we introduced the concept of "virtual residual bandwidth" for both classes of traffic. By using "virtual residual bandwidth" as routing metric, we evaluated routing performance by computer simulation and made clear it on the test-bed network. We further investigate performance of re-routing mechanism which re-allocates established traffic for accepting newly arrival and high-priority traffic.
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