| Presentation | 2001/11/15 On Modeling Packet Delay Dynamics of the Internet using System Identification Mitsushige Morita, Hiroyuki Ohsaki, Masayuki Murata, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Understanding the end-to-end packet delay dynamics of the Internet is of crucial importance since it directly affects the QoS (Quality of Services) of applications, and it enables us to design an efficient congestion control mechanism. In our previous work, we have measured round-trip packet delays of the Internet: and have modeled the packet delay dynamics using system identification. As the input and output data for system identification, we have used the packet inter-departure time from a source host and the corresponding round-trip time measured by the source host. On the contrary, in this paper, we use the packet transmission rate from the source host, and the average round-trip time measured by the source host for improving an accuracy of the model. Using input and output data measured in LAN and WAN environments, we model the round-trip packet delay dynamics with the ARX (Auto-Regressive eXogenous) model. Through numerical examples. we show that the round-trip time dynamics in LAN environment can be accurately modeled by the ARX model. We also show that the round-trip time dynamics in WAN environment can be accurately modeled when the bottleneck link is shared by a small number of users. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Packet Delay / System Identification / ARX(Auto-Regressive eXogenous)Model |
| Paper # | NS2001-160,CQ2001-72,TM2001-50 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2001/11/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On Modeling Packet Delay Dynamics of the Internet using System Identification |
| Sub Title (in English) | |
| Keyword(1) | Packet Delay |
| Keyword(2) | System Identification |
| Keyword(3) | ARX(Auto-Regressive eXogenous)Model |
| 1st Author's Name | Mitsushige Morita |
| 1st Author's Affiliation | Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Hiroyuki Ohsaki |
| 2nd Author's Affiliation | Cybermedia Center, Osaka University |
| 3rd Author's Name | Masayuki Murata |
| 3rd Author's Affiliation | Cybermedia Center, Osaka University |
| Date | 2001/11/15 |
| Paper # | NS2001-160,CQ2001-72,TM2001-50 |
| Volume (vol) | vol.101 |
| Number (no) | 442 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |