| Presentation | 2002/2/7 Content Distribution Network for Mobile Streaming Media(<特集テーマ>コンテンツデリバリ技術及び一般) Takeshi Yoshimura, Yoshifumi Yonemoto, Tomoyuki Ohya, Minoru Etho, Susie Wee, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we present a mobile streaming media CDN (Content Distribution Network) architecture in which content segmentation, request routing, pre-fetch scheduling, and session handoff are controlled by SMIL (Synchronized Multimedia Integrated Language) modification. In this architecture, mobile clients simply follow modified SMIL files downloaded from a streaming portal server; these modifications enable multimedia content to be delivered to the mobile clients from the best surrogates in the CDN. The key components of this architecture are 1) content segmentation with SMIL modification, 2) on-demand rewriting of URLs in SMIL, 3) pre-fetch scheduling based on timing information derived from SMIL, 4) SMIL updates by SOAP (Simple Object Access Protocol) messaging for session handoffs due to clients mobility. The current status of our prototyping on a mobile QoS testbed "MOBIQ" is also reported in this paper. We are currently designing the SOAP-based APIs (Application Programmable Interfaces) needed for the mobile streaming media CDN and building the CDN over the current testbed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mobile network / streaming media / CDN / SMIL |
| Paper # | IN2001-162 |
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| Conference Information | |
| Committee | IN |
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| Conference Date | 2002/2/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Networks (IN) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | |
| Sub Title (in English) | |
| Keyword(1) | mobile network |
| Keyword(2) | streaming media |
| Keyword(3) | CDN |
| Keyword(4) | SMIL |
| 1st Author's Name | Takeshi Yoshimura |
| 1st Author's Affiliation | Multimedia Laboratories, NTT DoCoMo, Inc.() |
| 2nd Author's Name | Yoshifumi Yonemoto |
| 2nd Author's Affiliation | Multimedia Laboratories, NTT DoCoMo, Inc. |
| 3rd Author's Name | Tomoyuki Ohya |
| 3rd Author's Affiliation | Multimedia Laboratories, NTT DoCoMo, Inc. |
| 4th Author's Name | Minoru Etho |
| 4th Author's Affiliation | Multimedia Laboratories, NTT DoCoMo, Inc. |
| 5th Author's Name | Susie Wee |
| 5th Author's Affiliation | Hewlett-Packard Laboratories |
| Date | 2002/2/7 |
| Paper # | IN2001-162 |
| Volume (vol) | vol.101 |
| Number (no) | 639 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |