Improving QoS in BitTorrent-like VoD Systems

—In recent years a number of research efforts have focused on effective use of P2P-based systems in providing large scale video streaming services. In particular, live streaming and Video-on-Demand (VoD) systems have attracted much interest. While previous efforts mainly focused on the common challenges faced by both types of applications, there are still a number of fundamental open questions in designing P2P-based VoD systems, which is the focus of our effort. Specifically, in this paper, we consider a BitTorrent-like VoD system and focus on the following questions: (1) how the lack of load balance, which typically exists in a P2P-based VoD system, affects the performance and what steps can be taken to remedy that, and (2) is a FCFS approach to serving requests at a peer sufficient or whether a Deadline-Aware Scheduling (DAS) approach can lead to performance improvements. Given the deadline considerations that exist in VoD systems, we also investigate approaches to avoiding unnec...

• Type: Journal
• Year: 2010
• Where: INFOCOM
• Authors: Yan Yang, Alix L. H. Chow, Leana Golubchik, Danielle Bragg
• Keywords: Communications, INFOCOM 2010, P2P-based VoD, Questions, VoD Systems