Flash crowds and denial of service attacks: characterization and implications for CDNs and web sites
Proceedings of the 11th international conference on World Wide Web
Summary of WWW characterizations
World Wide Web
Tutorial on maximum likelihood estimation
Journal of Mathematical Psychology
An analysis of live streaming workloads on the internet
Proceedings of the 4th ACM SIGCOMM conference on Internet measurement
Analysis of multimedia workloads with implications for internet streaming
WWW '05 Proceedings of the 14th international conference on World Wide Web
A measurement-driven approach to designing peer-to-peer systems
A measurement-driven approach to designing peer-to-peer systems
A hierarchical characterization of a live streaming media workload
IEEE/ACM Transactions on Networking (TON)
mTreebone: A Hybrid Tree/Mesh Overlay for Application-Layer Live Video Multicast
ICDCS '07 Proceedings of the 27th International Conference on Distributed Computing Systems
Can internet video-on-demand be profitable?
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Chunkyspread: Heterogeneous Unstructured Tree-Based Peer-to-Peer Multicast
ICNP '06 Proceedings of the Proceedings of the 2006 IEEE International Conference on Network Protocols
The pollution attack in P2P live video streaming: measurement results and defenses
Proceedings of the 2007 workshop on Peer-to-peer streaming and IP-TV
Watching television over an IP network
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Modeling channel popularity dynamics in a large IPTV system
Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems
Surfing Peer-to-Peer IPTV: Distributed Channel Switching
Euro-Par '09 Proceedings of the 15th International Euro-Par Conference on Parallel Processing
A Measurement Study of a Large-Scale P2P IPTV System
IEEE Transactions on Multimedia
An Empirical Study of the Coolstreaming+ System
IEEE Journal on Selected Areas in Communications
A workload characterization study of the 1998 World Cup Web site
IEEE Network: The Magazine of Global Internetworking
Editorial: Editorial for special issue Internet-based Content Delivery
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We are recently observing an increase in popularity of Web 2.0 applications offering users the possibility of transmitting their own live streaming media content. The considerable amount of network bandwidth required by such applications, especially at peak usage, poses significant challenges to their scalability and popularity. In this context, we propose and evaluate alternative content distribution solutions that contribute to improve the scalability of this type of system. This work encompasses two major steps. First, we collect data from a popular online live video sharing service, and perform a characterization of key aspects of its workload. Next, driven by some of our findings, we propose two variations of a new hybrid content delivery architecture, which combine elements from the traditional centralized client-server and Peer-to-Peer architectures. Our characterization findings are also used to drive the design of a system simulator, used to evaluate the proposed strategies and the traditional architectures, considering different scenarios as well as metrics capturing the interests of both users and service providers. Our results indicate that the hybrid strategies yield the best tradeoffs between quality of service perceived by users and server resources consumption.