| Presentation | 2002/7/5 Implementation and Evaluation of Proxy Caching Mechanisms with Video Quality Adjustment Yoshiaki TANIGUCHI, Masahiro SASABE, Naoki WAKAMIYA, Masayuki MURATA, Hideo MIYAHARA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The proxy mechanism widely used in WWW systems offers low-delay data delivery by means of "proxy server". By applying proxy mechanisms to the video streaming system, we expect that high-quality and low-delay video distribution can be accomplished without introducing extra load on a system. In addition, it is effective for proxy to adapt the quality of cached video data to users requests if requests are diverse due to heterogeneity in terms of the available bandwidth, end-system performance, and user's preferences on the perceived video quality. We have proposed proxy caching mechanisms to accomplish the high-quality and highly-interactive video streaming services. In our proposed system, a video stream is divided into blocks for efficient use of a cache buffer. A proxy server is assumed to be able to adjust the quality of a cached or retrieved video block to a request through video filters. In this paper, to verify the practicality of our mechanisms, we implemented them on a real system and conducted experiments. Through evaluations from several performance aspects, it was shown that our proposed mechanisms can provide users with a video streaming service in a heterogeneous environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quality Adjustment / Video Streaming Service / Proxy Caching / MPEG-2 |
| Paper # | CQ2002-72 |
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| Committee | CQ |
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| Conference Date | 2002/7/5(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 Quality (CQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Implementation and Evaluation of Proxy Caching Mechanisms with Video Quality Adjustment |
| Sub Title (in English) | |
| Keyword(1) | Quality Adjustment |
| Keyword(2) | Video Streaming Service |
| Keyword(3) | Proxy Caching |
| Keyword(4) | MPEG-2 |
| 1st Author's Name | Yoshiaki TANIGUCHI |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Osaka University() |
| 2nd Author's Name | Masahiro SASABE |
| 2nd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Naoki WAKAMIYA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Osaka University |
| 4th Author's Name | Masayuki MURATA |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Osaka University |
| 5th Author's Name | Hideo MIYAHARA |
| 5th Author's Affiliation | Graduate School of Information Science and Technology, Osaka University |
| Date | 2002/7/5 |
| Paper # | CQ2002-72 |
| Volume (vol) | vol.102 |
| Number (no) | 191 |
| Page | pp.pp.- |
| #Pages | 6 |
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