| Presentation | 2010-03-01 Adaptive Minimum Filter for Precise Time Synchronization on IP Networks Satoru OHTA, Hitoshi UEMATSU, Kan TOYOSHIMA, Kenji HISADOME, Mitsuhiro TESHIMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a time synchronization protocol over IP networks, such as NTP (Network Time Protocol), the time offset is evaluated by measuring the Round Trip Time (RTT). In this method, to avoid the estimation errors caused by delay variation, the minimum filter technique is employed. For this technique, it is necessary to appropriately select the number of samples, from which the minimum value is selected, with considering the trade-off between filtering effect and stability. This paper investigates on an adaptive minimum filter, which controls the number of samples depending on the variation of RTT values. The adaptive minimum filter is applied to the time synchronization and the time accuracy is evaluated through computer simulation. The simulation result shows that the adaptive minimum filter achieves good time accuracy in comparison with the conventional technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | time synchronization / round trip time / IP networks / delay variation / filter |
| Paper # | CAS2009-95,SIP2009-140,CS2009-90 |
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| Conference Information | |
| Committee | CS |
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| Conference Date | 2010/2/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Systems (CS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive Minimum Filter for Precise Time Synchronization on IP Networks |
| Sub Title (in English) | |
| Keyword(1) | time synchronization |
| Keyword(2) | round trip time |
| Keyword(3) | IP networks |
| Keyword(4) | delay variation |
| Keyword(5) | filter |
| 1st Author's Name | Satoru OHTA |
| 1st Author's Affiliation | Department of Information Systems Engineering, Faculty of Engineering, Toyama Prefecural University() |
| 2nd Author's Name | Hitoshi UEMATSU |
| 2nd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 3rd Author's Name | Kan TOYOSHIMA |
| 3rd Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 4th Author's Name | Kenji HISADOME |
| 4th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| 5th Author's Name | Mitsuhiro TESHIMA |
| 5th Author's Affiliation | NTT Network Innovation Laboratories, NTT Corporation |
| Date | 2010-03-01 |
| Paper # | CAS2009-95,SIP2009-140,CS2009-90 |
| Volume (vol) | vol.109 |
| Number (no) | 436 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |