| Presentation | 2020-03-05 A Study on a Segment Prefetch Algorithm for DASH Streaming Video in Cache-enabled Networks Yoji Yamamoto, Yuki Koizumi, Toru Hasegawa, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | When clients watch Dynamic Adaptive Streaming over HTTP (DASH) videos on top of a cache-enabled network, cache hits may contribute to not only reducing traffic in the network but also improving the average bitrate of DASH videos. Since links between caches and source servers providing DASH videos are not used by clients in the case of cache hits, the clients can download segments from the caches and prefetch high bitrate segments used in the near future simultaneously by using such unused links, thereby improving the average bitrate of DASH videos. Both estimating segments in caches and available bandwidth of links between caches and servers are keys to realizing this algorithm, referred to as a segment prefetch algorithm. In this paper, we conduct simulation experiments to investigate how wrong estimation of the two factors affects the performance of the segment prefetch algorithm and discuss design rationales for this algorithm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | In-network Cache / Dynamic Adaptive Streaming over HTTP (DASH) / Prefetching |
| Paper # | NS2019-183 |
| Date of Issue | 2020-02-27 (NS) |
| Conference Information | |
| Committee | NS / IN |
|---|---|
| Conference Date | 2020/3/5(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Royal Hotel Okinawa Zanpa-Misaki |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT-AT) |
| Vice Chair | Akihiro Nakao(Univ. of Tokyo) / Kenji Ishida(Hiroshima City Univ.) |
| Secretary | Akihiro Nakao(Osaka Pref Univ.) / Kenji Ishida(NTT) |
| Assistant | Shinya Kawano(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Information Networks |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on a Segment Prefetch Algorithm for DASH Streaming Video in Cache-enabled Networks |
| Sub Title (in English) | |
| Keyword(1) | In-network Cache |
| Keyword(2) | Dynamic Adaptive Streaming over HTTP (DASH) |
| Keyword(3) | Prefetching |
| 1st Author's Name | Yoji Yamamoto |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Yuki Koizumi |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Toru Hasegawa |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2020-03-05 |
| Paper # | NS2019-183 |
| Volume (vol) | vol.119 |
| Number (no) | NS-460 |
| Page | pp.pp.37-42(NS), |
| #Pages | 6 |
| Date of Issue | 2020-02-27 (NS) |