Content dependency of the traffic control in the darwin streaming server
2012 (English)Conference paper (Refereed) Published
The Darwin Streaming Server employs stream thinning and transmission rate adaptation for trafﬁc and congestion control. We investigate the relation of video content with the stream thinning and transmission rate adaptation process under 3GPP-adaptation. We observe that stream thinning is not only initiated upon ﬂuctuation of network properties, but sometimes also upon the content of the streamed video. Moreover, we show that in extreme situations the video transmission is halted based merely on content dependent properties reﬂected in the RTSP feedback. This may have adverse consequences for the user experience. We put forward alterations to the 3GPP-adaptation trafﬁc control of the Darwin Streaming Server that controls the stream thinning process. The alterations aim to avoid video freezes as a result of video content dependent properties. The results show that the probability of an interrupt-free playback is lower for the alterations than for the default streaming server algorithms.
Place, publisher, year, edition, pages
Karlskrona: IEEE , 2012.
traffic control, streaming server
IdentifiersURN: urn:nbn:se:bth-7235DOI: 10.1109/NGI.2012.6252166Local ID: oai:bth.se:forskinfo977557083CF2FB07C1257A610032CFA5ISBN: 978-1-4673-1632-3OAI: oai:DiVA.org:bth-7235DiVA: diva2:834822
8th EURO-NF Conference on Next Generation Internet (NGI)