Improving HTTP-based video performance using network flow buffering

Abstract

Abstract-We present network flow buffering, which is the use of a remote flow-regulating buffer that is deployed between a Web client and server to improve performance of HTTP-based playback of video. We show that HTTP enhanced with network flow buffering significantly improves performance, especially under high packet loss and highly variable bandwidth conditions, when compared with using either straight HTTP or streaming. The benefits of network flow buffering are numerous, and include reducing interruptions to playback, maintaining high video-image quality, and decreasing client-buffering requirements. Network flow buffering is easily implemented with existing Web mechanisms.

Adaptive Transmission Control Protocol‐trunking flow control mechanism for supporting proxy‐assisted video on demand system

“…Because video streaming applications require real‐time and steady transmitting throughput support, the efficiencies of flow control and rate control mechanisms become important for streaming service. For the User Datagram Protocol (UDP)‐based flow control mechanism, the current streaming protocol mainly adopts Real Time Streaming Protocol (RTSP), Real‐time Transport Protocol (RTP), and Real‐Time Transport Control Protocol (RTCP) as the basic streaming protocols. In this kind of approach, RTSP uses TCP to respond for constructing and controlling time synchronization during streaming transmission at client and server sides.…”

Animated exploration of dynamic graphs with radial layout

“…This network has previously been visualized as a static layout [5,20]. Graph nodes represent hosts in order to display the topology of the virtual network; the nodes and connections are colored in order to show their status and behavior.…”