| Presentation | 2002/3/8 A Prefetching Strategy of Streaming Contents for Proxy Cache Servers Masayoshi Kobayashi, Toshiyasu Kurasugi, Koichi Konishi, Tutomu Murase, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Today, broadband access networks come into wide use and multimedia streaming services have started by many network operators. While the bandwidth available within broadband access networks is large and stabled, that available in core networks and links between access networks and core networks is small and fluctuates in time. Thus, bandwidth bottlenecks exist between access networks and origin servers. Streaming proxy cache servers, which cache the fragments of original large multimedia contents and prefetches the rest of contents from origin servers on demand, can stabilize the quality of the streaming service. However, the prefetching traffic of streaming contents still suffers the ordinary web traffic in the bottleneck. In this paper, we propose a prefetching strategy in which (1) a proxy prefetches the extra amount of streaming contents when the bottleneck is not congested and (2) reduces the prefetching rate as long as the prefetching buffer contents enough amount of prefetched contents to keep the quality of the streaming service. In the evaluation, we demonstrated that, under the condition that both the bandwidth of the bottleneck and the throughput of ordinary web traffic axe equated, our strategy enables proxy servers to accommodate two times larger number of streaming services than existing ones do. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Contents Delivery / Streaming / Cache server / Prefetch |
| Paper # | NS2001-271 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2002/3/8(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) | A Prefetching Strategy of Streaming Contents for Proxy Cache Servers |
| Sub Title (in English) | |
| Keyword(1) | Contents Delivery |
| Keyword(2) | Streaming |
| Keyword(3) | Cache server |
| Keyword(4) | Prefetch |
| 1st Author's Name | Masayoshi Kobayashi |
| 1st Author's Affiliation | Networking Laboratories, NEC Corp.() |
| 2nd Author's Name | Toshiyasu Kurasugi |
| 2nd Author's Affiliation | Networking Laboratories, NEC Corp. |
| 3rd Author's Name | Koichi Konishi |
| 3rd Author's Affiliation | Networking Laboratories, NEC Corp. |
| 4th Author's Name | Tutomu Murase |
| 4th Author's Affiliation | Networking Laboratories, NEC Corp. |
| Date | 2002/3/8 |
| Paper # | NS2001-271 |
| Volume (vol) | vol.101 |
| Number (no) | 715 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |