Effect of 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: Article査読

抄録

In Video on Demand (VoD) services, the demand for content items greatly changes daily over the course of the day. Because service providers are required to maintain a stable service during peak hours, they need to design system resources on the basis of peak demand time, so reducing the server load at peak times is important. To reduce the peak load of a content server, we propose to multicast popular content items to all users independently of actual requests as well as providing on-demand uni-cast delivery. With this solution, however, the hit ratio of pre-distributed content items is small, and large-capacity storage is required at each set-top box (STB). We can expect to cope with this problem by limiting the number of pre-distributed content items or clustering users based on their viewing histories. We evaluated the effect of these techniques by using actual VoD access log data. We also evaluated the total cost of the multicast pre-distribution VoD system with the proposed two techniques.

本文言語English
ページ(範囲)143-154
ページ数12
ジャーナルIEICE Transactions on Communications
E96-B
1
DOI
出版ステータスPublished - 2013 1月
外部発表はい

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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