Popularity Proportional Cache Size Allocation policy for video delivery on CCN

Haipeng Li, Hidenori Nakazato, Andrea Detti, Nicola Blefari Melazzi

研究成果: Conference contribution

12 被引用数 (Scopus)

抄録

Content Centric Networking (CCN), which is regarded as an innovational architecture of future network, is increasingly gaining attention in recent years. Based on the observation of current Internet usage, CCN presents a content-centric model which focuses on data distribution and retrieval. To enhance the efficiency of content distribution, In-network caching is adopted, which enables routers to temporarily store the passing by data. Thus the scheme of cache management will affect the network performance significantly. In this paper, a cache replacement policy named Popularity Proportional Cache Size Allocation (PPCSA) policy has been proposed, which designed for video content delivery on CCN. Unlike other previous works in this area, which have focused on the popularity of individual content chunks, in this study, we not only consider the title-level popularity of a video which is composed of a set of video segments, but also take the chunk-level probability of video segments within a video title into consideration. We evaluated our policy through simulations, by using a simple 4-level tree topology and a real network based hybrid topology. The results validate that on both scenarios, the proposed approach can increase the average cache hit ratio and shorten the average content delivery distance between requesters and object contents. In addition, we analyzed the energy efficiency of PPCSA policy, and we found that compared to other three cache replacement policies, Least Recently Used (LRU), Least Frequently Used (LFU) and First in First out (FIFO), PPCSA reduced the transmission energy consumption, and improved the energy efficiency in idle time.

本文言語English
ホスト出版物のタイトル2015 European Conference on Networks and Communications, EuCNC 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ページ434-438
ページ数5
ISBN(電子版)9781467373593
DOI
出版ステータスPublished - 2015 8 12
イベントEuropean Conference on Networks and Communications, EuCNC 2015 - Paris, France
継続期間: 2015 6 292015 7 2

出版物シリーズ

名前2015 European Conference on Networks and Communications, EuCNC 2015

Other

OtherEuropean Conference on Networks and Communications, EuCNC 2015
国/地域France
CityParis
Period15/6/2915/7/2

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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