Title :
Peer-assisted Content Delivery Network for Live Streaming: Architecture and Practice
Author :
Liu, Yu ; Yin, Hao ; Zhu, Guangxi ; Liu, Xuening
Author_Institution :
Huazhong Univ. of Sci. & Technol., Huazhong
Abstract :
This paper presents a hierarchical peer-assisted CDN architecture for live streaming, concerning the scalability of Content Delivery Networks (CDNs) and quality of the prosperous live streaming services. The meaning of Peer-assisted in our design is twofold: 1) a Peer-to-Peer(P2P) overlay on CDN data centers to accelerate stream piping among servers; and 2) P2P extended client regions conducted by corresponding edge servers for scalable streaming to clients. A system built according to this architecture has been deployed on ChinaCache, our partnering CDN. Results of practicing performance prove our design is able to achieve unprecedented scalability and high QoS for live streaming services of commercial CDNs.
Keywords :
content management; media streaming; peer-to-peer computing; edge servers; hierarchical peer-assisted CDN architecture; live streaming services; peer-assisted content delivery network; peer-to-peer overlay; scalable streaming; stream piping; Acceleration; Broadcasting; Buildings; Costs; IP networks; Network servers; Probes; Routing; Scalability; TV; CDN; P2P; live streaming;
Conference_Titel :
Networking, Architecture, and Storage, 2008. NAS '08. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-0-7695-3187-8
