Conference Paper

An integrated rate control scheme for TCP-friendly MPEG-4 video transmission

Department of Electrical Engineering, National Cheng Kung University, 臺南市, Taiwan, Taiwan
DOI: 10.1109/ISCAS.2005.1465039 Conference: Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Source: DBLP

ABSTRACT Delivering MPEG-4 real-time video over the Internet needs rate control schemes to be employed in both the compression and transport domains. In addition to the rate matching requirement between the two schemes to ensure TCP-friendliness, the demand of smoothness also has significant impact on media quality. We propose an integrated rate control scheme for MPEG-4 video transported by a TCP-friendly rate control (TFRC) protocol. Experimental results show successful integration with relatively low rate variation for video coding. Reduced frame skipping indicates, improved temporal quality while the flickering artifact, possibly caused by rate variation, is decreased through a PSNR test.

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    ABSTRACT: Rate control plays an important role in delivering video traffic over the Internet due to highly bursty nature of the video data and variability of the network bandwidth. The researchers in this area are either controlling the video rate coding or optimizing the congestion control to support the video traffic transmission. As a consequence of layering principle of the network architecture, the algorithm in each layer works independently. Thus, any optimization at video coding rate does not necessarily improve the video data transmission effectively. In this paper, we investigated the above-mentioned premise. We found that TFRC works independently from the video coding rate. Consequently, any effort to optimize the video traffic Internet transmission needs to consider employing rate control schemes both at video coding rate and congestion control algorithm.
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