Modeling TCP throughput: a simple model and its empirical validation
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
The MPEG-4 fine-grained scalable video coding method for multimediastreaming over IP
IEEE Transactions on Multimedia
Resource allocation for multimedia streaming over the Internet
IEEE Transactions on Multimedia
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When a considerable amount of UDP traffic is injected into the Internet by distributed multimedia applications, the Internet easily becomes congested. Consequently, the bandwidth available to TCP connections becomes limited and performance significantly deteriorates. In order that both multimedia applications and TCP-based ones can fairly co-exist on the Internet, it is becoming increasingly important to consider inter-protocol fairness.In this paper, we first consider several issues related to TCP-friendly video transfer and propose several video-quality adjustment methods which accomplish highquality, stable, and TCP-friendly FGS (Fine Granular Scalability) video transfer. Then, with consideration on the quality degradation caused by packet loss in video quality adaptation, we extend our method so that it is applicable to a lossy environment when it is used in cooperation with the FEC (Forward Error Correction) technique. Our mechanism adjusts the video quality in accordance with the TFRC (TCP-Friendly Rate Control) rate, the packet loss probability, and the resultant video quality, while avoiding undesirable video-quality degradation. Through simulation experiments using FGS video streams, we show that our proposed method can provide high-quality, stable and TCP-friendly video transfer even in the unstable and lossy Internet.