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A Light-weight Content Distribution Scheme for Cooperative Caching in Telco-CDNs
https://uec.repo.nii.ac.jp/records/7002
https://uec.repo.nii.ac.jp/records/7002153762bc-8c00-437f-8e49-753c15a33b5f
名前 / ファイル | ライセンス | アクション |
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tnakajima-candar16-with-copyright.pdf (191.7 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2016-11-30 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A Light-weight Content Distribution Scheme for Cooperative Caching in Telco-CDNs | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題 | cooperative caching | |||||
キーワード | ||||||
言語 | en | |||||
主題 | sub-optimal content placement | |||||
キーワード | ||||||
言語 | en | |||||
主題 | hybrid caching | |||||
キーワード | ||||||
言語 | en | |||||
主題 | dynamic content popularity. | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Nakajima, Takuma
× Nakajima, Takuma× Yoshimi, Masato× Wu, Celimuge× Yoshinaga, Tsutomu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A key technique to reduce the rapid growing of video-on-demand’s traffic is a cooperative caching strategy aggregating multiple cache storages. Many internet service providers have considered the use of cache servers on their networks as a solution to reduce the traffic. Existing schemes often periodically calculate a sub-optimal allocation of the content caches in the network. However, such approaches require a large computational overhead that cannot be amortized in a presence of frequent changes of the contents’ popularities. This paper proposes a light-weight scheme for a cooperative caching that obtains a sub-optimal distribution of the contents by focusing on their popularities. This was made possible by adding color tags to both cache servers and contents. In addition, we propose a hybrid caching strategy based on Least Frequently Used (LFU) and Least Recently Used (LRU) schemes, which efficiently manages the contents even with a frequent change in the popularity. Evaluation results showed that our light-weight scheme could considerably reduce the traffic, reaching a sub-optimal result. In addition, the performance gain is obtained with a computation overhead of just a few seconds. The evaluation results also showed that the hybrid caching strategy could follow the rapid variation of the popularity. While a single LFU strategy drops the hit ratio by 13.9%, affected by rapid popularity changes, our proposed hybrid strategy could limit the degradation to only 2.3%. | |||||
書誌情報 |
en : Proceedings of The Fourth International Symposium on Computing and Networking 発行日 2016-11 |
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著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |