Limiting pre-distribution and clustering users on multicast pre-distribution VoD

Noriaki Kamiyama*, Ryoichi Kawahara, Tatsuya Mori, Haruhisa Hasegawa

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In Video on Demand (VoD) services, the demand for content items greatly changes daily, so reducing the server load at the peak time is an important issue for ISPs to reduce the server cost. To achieve this goal, we proposed to reduce the server load by multicasting popular content items to all users independently of actual requests as well as providing on-demand unicast delivery. In this solution, however, the hit ratio of pre-distributed content items is small, and a large-capacity storage is required at set-top box (STB). We might be able to cope with this problem by limiting the number of pre-distributed content items or clustering users based on the history of viewing. We evaluate the effect of these techniques using actual VoD access log data. We clarify that the required storage capacity at STB can be halved while keeping the effect of server load reduction to about 80% by limiting pre-distributed content items, and user clustering is effective only when the cluster count is about two.

本文言語English
ホスト出版物のタイトルProceedings of the 12th IFIP/IEEE International Symposium on Integrated Network Management, IM 2011
ページ706-709
ページ数4
DOI
出版ステータスPublished - 2011 9月 19
外部発表はい
イベント12th IFIP/IEEE International Symposium on Integrated Network Management, IM 2011 - Dublin, Ireland
継続期間: 2011 5月 232011 5月 27

出版物シリーズ

名前Proceedings of the 12th IFIP/IEEE International Symposium on Integrated Network Management, IM 2011

Conference

Conference12th IFIP/IEEE International Symposium on Integrated Network Management, IM 2011
国/地域Ireland
CityDublin
Period11/5/2311/5/27

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信

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