ACON: Adaptive Construction of the Overlay Network in CDN-P2P VoD System
P2P VoD deployed on infrastructure of the Content Delivery Network (CDN) is an internet killer application. Each CDN node has an isolated overlay only for a channels users within the same CDN node, which is different from the traditional pure P2P VoD. However, most channels inside a single CDN node have few concurrent users, so how to construct an efficient delivery overlay to reduce the server load has become a great challenge. In this paper, we study when and how to construct the overlay adaptively and how to control the P2P traffic locality. To this end we propose Adaptive Construction of the Overlay Network (ACON) scheme. According to ACON, each CDN node can find neighbors to construct the overlay from some other specified CDN nodes adaptively and scale the border of the overlay when needed. Experimental results based on extensive simulations have shown the effectiveness of ACON. Compared with isolated overlay construction inside a single CDN node, ACON improves the accecplance rale of users request about 41% and makes the traffie locality in a controlled way.
P2P VoD CDN overlay construction
Peichang Shi Huaimin Wang Yin Gang Xiaoqun Yuan
School of Computer and Science National University of Defense Technology Changsha, China Department of Electronics and Information Engineering Huazhong University of Science Technology Wuha
国际会议
西安
英文
182-187
2011-05-27(万方平台首次上网日期,不代表论文的发表时间)