Video TFRC

Evan Tan (1) , Jing Chen (1) , Sebastien Ardon (1) , Emmanuel Lochin (2, 3)

1 NICTA - National ICT Australia [Sydney]
2 LAAS - Laboratoire d'analyse et d'architecture des systèmes
3 DMIA - Département de Mathématiques, Informatique, Automatique

TCP-friendly rate control (TFRC) is a congestion control technique that trade-offs responsiveness to the network conditions for a smoother throughput variation. We take advantage of this trade-off by calculating the rate gap between the theoretical TCP throughput and the smoothed TFRC throughput. Any rate gain from this rate gap is then opportunistically used for video coding. We define a frame complexity measure to determine the additional rate to be used from the rate gap and then perform a rate negotiation to determine the target rate for the encoder and the final sending rate. Results show that although this method has a more aggressive sending rate compared to TFRC, it is still TCP-friendly, does not contribute too much to network congestion and achieves a reasonable video quality gain over the conventional method.

Domaines: Réseaux et télécommunications [cs.NI]

Evan Tan, Jing Chen, Sebastien Ardon, Emmanuel Lochin. Video TFRC. IEEE ICC 2008 : IEEE International Conference on Communications, May 2008, Beijing, China. 5p., ⟨10.1109/ICC.2008.339⟩. ⟨hal-00361428⟩