Optimized video streaming over 802.11 by cross-layer signaling

IJ Haratcherev, JR Taal, KG Langendoen, RL Lagendijk, HJ Sips

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73 Citations (Scopus)


Abstract Seamless video streaming over wireless links imposes strong demands on video codecs and the underlying network. It is not sufficient that only the video codec or only the radio adapts to changes in the wireless link quality; efforts should be applied in both layers, and - if possible - synchronized. Also, the disturbing effect of possible background traffic over the same shared medium has to be taken into account. In this article we present a communication architecture for video streaming over 802.11 that is capable of adapting to changes in the link quality and sharing of the wireless channel in various use scenarios. Experimental results show that substantial improvements in the quality of the video can be obtained by applying link adaptation and cross-layer signaling techniques.
Original languageUndefined/Unknown
Pages (from-to)115-121
Number of pages7
JournalIEEE Communications Magazine
Issue number1
Publication statusPublished - 2006

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