rStream: resilient peer-to-peer streaming with rateless codes

The inherent instability and unreliability of peer-to-peer networks introduce several fundamental engineering challenges to multimedia streaming over peer-to-peer networks. First, multimedia streaming sessions need to be resilient to the volatile network dynamics in peer-to-peer networks. Second, they need to take full advantage of the existing bandwidth capacities, by minimizing the delivery of redundant content during streaming. In this paper, we propose to use a recent coding technique, referred to as rateless codes, to code the multimedia bitstreams before they are transmitted over peer-topeer links. The use of rateless codes eliminates the requirements of content reconciliation, as well as the risks of delivering redundant content over the network. It also helps the streaming sessions to adapt to volatile network dynamics. Our preliminary simulation results demonstrate the validity and effectiveness of our new contribution, as compared to traditional solutions with or without era...

• Type: Conference
• Year: 2005
• Where: MM
• Authors: Chuan Wu, Baochun Li
• Keywords: MM 2005, Peer-to-peer Networks, Rateless Codes, Volatile Network Dynamics