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Multi-party videoconferencing is one many-to-many group communication application in which multicast could be utilized to save bandwidth. For native multicast is still not available everywhere, we need provide scalable and efficient way for unicast users to communicate with multicast-capable users in videoconferencing. This paper proposes one scalable hybrid multicast scheme with peer-forwarding for...
Network coordinate (NC) which provides efficient distance prediction with scalable measurements, brings benefits to various network applications. Phoenix Network Coordinate system is a recently proposed dot product based NC system with high prediction accuracy and better robustness. In this paper, we discuss the neighbor selection policies for Phoenix and propose a modified Phoenix with hybrid neighbor...
IP multicast originally works in any source multicast (ASM) that comes with great burden and dynamics on the backbone routers and weakness in inter-domain scalability. It also brought serious security and management problems. In contrast, source-specific multicast (SSM) has been recognized as a simple, scalable and secure method, especially in inter-domain multicast. However, its applicability to...
Congestions in many-to-many videoconferencing are usually caused by multiple senders. Judging the congestion links and determining the adjusting bit rate of senders which caused the congestions are the two issues in congestion control. In this paper, we propose one multicast congestion control scheme based on packets transmission model of shared multicast tree. The end-to-end packet loss rates are...
Congestions in many-to-many videoconferencing are usually caused by multiple senders, the congestion information feedback, bottleneck link judge and sending rate adjust are much different from one-to-many multicasting. In this paper, we propose one multicast congestion control scheme based on end-to-end tomography (ET-MCC) for many-to-many videoconferencing. The end-to-end packet loss rates are measured...
Native multicast is not ubiquitous available now, providing efficient way for unicast end-hosts to access multicast session is important for many-to-many videoconferencing. Reflector-based hybrid multicast scheme is not scalable for bottleneck of its capacity and deployment expenses. We proposed one peer-based hybrid multicast scheme for scalable many-to-many videoconferencing. The multicast-capable...
Multicast based videoconference (MVC) is one of representative applications in next generation Internet. Native IP multicast has advantages in group communications for large scale multipoint videoconferencing. This paper introduces the service and applications of native multicast based videoconference on China Education and Research Network (CERNET). The native multicast service, conferencing service...
Current Internet research suffers from limited information available from public network traffic traces due to the privacy concern of ISP and lack of effective trace distribution systems. In this paper, we present our SANTT (sharing anonymized network traces) system to share valuable network traffic traces safely and widely. SANTT employs a novel prefix-preserving anonymization method to sanitize...
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