Design and Deployment of Locality-Aware Overlay Multicast Protocol for Live Streaming Services

Abstract

Abstract. This paper presents the design and deployment of a locality-aware overlay multicast protocol called Anysee. The key idea of Anysee is to use the geometrical information of end hosts to construct the locality-aware overlay data delivery tree such that nearby users in the underlying network can be organized into nearby subtrees. The prototype of Anysee has been widely used in CERNET. Logging traces obtained from broadcasting 2004 Athens Olympic Games over 16 days have shown that the performance of Anysee, such as end-to-end delay and absolute data delivery delay, significantly outperforms that of randomly constructed overlay multicast.

Scalable Live Streaming Service Based on Interoverlay Optimization

“…A location-detector-based algorithm is employed to match the overlay with the underlying physical topology [22]. Second, the single overlay manager, which is based on traditional intraoverlay optimization such as Narada [9], DONet, or nearcast [26], deals with the join/ leave operations of peers. Third, the interoverlay optimization manager explores appropriate paths, builds backup links, and cuts off paths with low QoS for each end peer.…”

“…Before interoverlay optimization, one peer joins one streaming overlay and receives media contents from multiple providers or a single provider according to intraoverlay optimization schemes. Here, we apply one scheme, named the "locality-aware" tree-based overlay construction scheme [26], to build an optimized single overlay.…”