Distilling Superior Peers in Large-Scale P2P Streaming Systems

Abstract—In large-scale peer-to-peer (P2P) live streaming systems with a limited supply of server bandwidth, increasing the amount of upload bandwidth supplied by peers becomes critically important to the “well being” of streaming sessions in live channels. Intuitively, two types of peers are preferred to be kept up in a live session: peers that contribute a higher percentage of their upload capacities, and peers that are stable for a long period of time. The fundamental challenge is to identify, and satisfy the needs of, these types of “superior” peers in a live session, and to achieve this goal with minimum disruption to the traditional pull-based protocols that real-world live streaming protocols use. In this paper, we conduct a comprehensive and in-depth statistical analysis based on more than 130 GB worth of runtime traces from hundreds of streaming channels in a largescale real-world live streaming system, UUSee (among the top three commercial systems in popularity in m...

• Type: Conference
• Year: 2009
• Where: INFOCOM
• Authors: Zimu Liu, Chuan Wu, Baochun Li, Shuqiao Zhao
• Keywords: Communications, INFOCOM 2009, Live Streaming, Live Streaming System, Superior Peers