Performance Monitoring of VoIP Flows for Large Network Operations(<Special Section>New Challenge for Internet Technology and its Architecture)
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概要
- 論文の詳細を見る
The monitoring of performance in VoIP traffic has become vital because users generally expect VoIP service quality that is as high as that of PSTN services. A lightweight method of processing by extracting VoIP flows from Internet traffics is proposed in this paper. Estimating delay variations and the packet loss ratio using knowledge about specific features and the characteristics of VoIP flows, i.e., the inter-packet gap (IPG) which is constant in VoIP flows, is also proposed. Simulation with actual traffic trace is used to evaluate the method, and this revealed that delay variations (IPG variance) can be accurately estimated by monitoring only a few percentage of all flows. The proposed method can be used as a first-alert tool to monitor large amounts of flows to detect signs of degradation in VoIP flows. The method can be used by ISPs to estimate whether VoIP flow performance is adequate within their networks and at ingress from other ISPs.
- 社団法人電子情報通信学会の論文
- 2007-10-01
著者
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Kitatsuji Yoshinori
KDDI R&D Laboratories, Inc.
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Oie Y
Kyushu Inst. Technol. Fukuoka Jpn
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Oie Yuji
Kyushu Inst. Technol. Iizuka‐shi Jpn
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Oie Yuji
The Department Of Computer Science And Electronics Kyushu Institute Of Technology
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Oie Yuji
Department Of Computer Science And Electronics Kyushu Institute Of Technology
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Oie Yuji
Department Of Computer Scienece And Electronics Kyushu Institute Of Technology
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Oie Yuji
Telecommunications Advancement Organization Of Japan:department Of Computer Science And Electronics
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Tsuru M
Kyushu Inst. Technol. Iizuka‐shi Jpn
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Tsuru Masato
Department Of Computer Science And Electronics Kyushu Institute Of Technology
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Tsuru Masato
Information Science Center Nagasaki University
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Tsuru Masato
Department Of Computer Science And Electronics Faculty Of Computer Science And Systems Engineering K
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Yamazaki Katsuyuki
Kddi R & D Laboratories Inc.
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Yamazaki Katsuyuki
Nagaoka Universisty Of Technology
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Kitatsuji Yoshinori
Kddi R & D Laboratories Inc.:kyushu Research Center Nict
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Katsuno S
Nagoya University School Of Medicine
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Katsuno Satoshi
Kddi R & D Laboratories Inc.
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Yamazaki K
Nagaoka Universisty Of Technology
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