An adaptive congestion control scheme for real-time packet video transport
SIGCOMM '93 Conference proceedings on Communications architectures, protocols and applications
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Video over TCP with receiver-based delay control
NOSSDAV '01 Proceedings of the 11th international workshop on Network and operating systems support for digital audio and video
The Case for Streaming Multimedia with TCP
IDMS '01 Proceedings of the 8th International Workshop on Interactive Distributed Multimedia Systems
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In this paper, we present adaptation strategies for realtime video streams over Stream Control Transmission Protocol (SCTP), where we switch among several versions of the coded video to match the available network bandwidth accurately, and meet client delay constraints. By monitoring the application buffer at the server, we estimate the current and future server buffer drain delay, and derive the transmission rate to minimize client buffer starvation. We also show that the adaptation accuracy can be significantly improved by a simple scaling to SCTP send-buffer size. The proposed mechanisms were evaluated through simulation and real Internet traces. Performance results show that the adaptation mechanism is responsive to bandwidth fluctuations, while ensuring that the client buffer does not underflow, and that the quality adaptation is smooth so that the impact on the perceptual quality at the client is minimal.