Investigation of H.264 video streaming over an IEEE 802.11e EDCA wireless testbed

Richard Haywood*, Saty Mukherjee, Xiao-Hong Peng

*Corresponding author for this work

Research output: Chapter in Book/Published conference outputConference publication


Although a number of investigations have been conducted using IEEE 802.11e enabled networks to stream class differentiated video, very few reports are available based on a real testbed. In our work, we set up a wireless testbed for H.264 video streaming through assigning the partitioned video packets onto the DCF MAC layer and different access classes of the EDCA MAC layer. We investigate three assignment schemes: 1) DCF is used and all the traffic is treated equally; 2) video traffic is assigned to each of the access classes in turn; and 3) the packets are assigned according to their importance and the class priority. In addition to the video stream we introduce TCP traffic from three clients in the best effort class. We show that video quality can be improved through properly assigning packets to wireless access classes compared to the standard best effort scheme. Importantly, we show, based on our testbed results, that the single class assignment can achieve better performance than the multi-class assignment suggested by other researchers. Finally we show that virtual contention between traffic classes at the access point is an important issue to address.

Original languageEnglish
Title of host publication2009 IEEE International Confernece on Communications, ICC 2009, proceedings
Number of pages5
ISBN (Print)978-1-4244-3435-0
Publication statusPublished - 19 Nov 2009
Event2009 IEEE International Conference on Communications, ICC 2009 - Dresden, Germany
Duration: 14 Jun 200918 Jun 2009

Publication series

ISSN (Print)1938-1883


Conference2009 IEEE International Conference on Communications, ICC 2009


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