Research Article
A Comparison of Request and Measurement Based End to End Video Target Rate Adaptation Methods
@INPROCEEDINGS{10.4108/ICST.MOBIMEDIA2008.3975, author={Arto Mahkonen and Toomas Wigell}, title={A Comparison of Request and Measurement Based End to End Video Target Rate Adaptation Methods}, proceedings={4th International ICST Mobile Multimedia Communications Conference}, publisher={ICST}, proceedings_a={MOBIMEDIA}, year={2010}, month={5}, keywords={Video target rate adaptation packet loss transport delay variation}, doi={10.4108/ICST.MOBIMEDIA2008.3975} }- Arto Mahkonen
Toomas Wigell
Year: 2010
A Comparison of Request and Measurement Based End to End Video Target Rate Adaptation Methods
MOBIMEDIA
ICST
DOI: 10.4108/ICST.MOBIMEDIA2008.3975
Abstract
In this paper, we compare a request based video target rate adaptation method to a measurement based adaptation method. It is shown that by using methods, that use both estimation of the transport delay and its variation and packet loss jointly, it is possible to reduce packet losses and transport delay variation, when the transport channel is temporarily congested or suffering from other bad conditions (like fading radio access). The lower packet loss and transport delay variation consequently improves the perceptual quality of the video signal significantly. Further it is shown by simulated experiments, that request based video adaptation method is less sensitive to the nominal RTCP sender report (SR) interval than a measurement based adaptation, when same mathematical algorithms for target rate estimation are used.