Skype video responsiveness to bandwidth variations
Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video
Assessing the Quality of Experience of SopCast
International Journal of Internet Protocol Technology
Peer-to-peer multipoint video conferencing with layered video
Journal of Network and Computer Applications
Conversational management of network trouble perturbations in personal videoconferencing
Proceedings of the 22nd Conference of the Computer-Human Interaction Special Interest Group of Australia on Computer-Human Interaction
Techniques for measuring quality of experience
WWIC'10 Proceedings of the 8th international conference on Wired/Wireless Internet Communications
IPTV quality assessment system
Proceedings of the 7th Latin American Networking Conference
Video telephony for end-consumers: measurement study of Google+, iChat, and Skype
Proceedings of the 2012 ACM conference on Internet measurement conference
Journal of Network and Computer Applications
Proceedings of the 4th ACM Multimedia Systems Conference
Thin to win?: network performance analysis of the OnLive thin client game system
Proceedings of the 11th Annual Workshop on Network and Systems Support for Games
The Optimiser: monitoring and improving switching delays in video conferencing
Proceedings of Workshop on Mobile Video Delivery
The Optimiser: monitoring and improving switching delays in video conferencing
Proceedings of Workshop on Mobile Video Delivery
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More and more free multi-party video conferencing applications are readily available over the Internet and both Server-to-Client (S/C) or Peer-to-Peer (P2P) technologies are used. Investigating their mechanisms, analyzing their system performance, and measuring their quality are important objectives for researchers, developers and end users. In this paper, we take four representative video conferencing applications and reveal their characteristics and different aspects of Quality of Experience. Based on our observations and analysis, we recommend to incorporate the following aspects when designing video conferencing applications: 1) Traffic load control/balancing algorithms to better use the limited bandwidth resources and to have a stable conversation; 2) Use traffic shaping policy or adaptively re-encode streams in real time to limit the overall traffic. This work is, to our knowledge, the first measurement work to study and compare mechanisms and performance of existing free multi-party video conferencing systems.