WIRELESS BROADCASTING USING THE SCALABLE EXTENSION OF H.264/AVC (WedAmPO1)

Author(s) : Thomas Schierl (Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (HHI), Germany) Heiko Schwarz (Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (HHI), Germany) Detlev Marpe (Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (HHI), Germany) Thomas Wiegand (Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute (HHI), Germany)

Abstract : The ongoing standardization activity in DVB on IP-based video and audio streaming services over DVB-H networks currently specifies three terminal classes ranging from QCIF, 15 Hz, and max. 128 kbit/s to CIF, 30 Hz, and max. 768 kbit/s. The reason for specifying these is to offer ser-vices to different terminal classes with different processing and battery power and also to anticipate the evolution of terminals. However, in a scenario where all terminal classes are present, the various streams may be simulcast incurring a large inefficiency of bit rate resources of the DVB-H network. We propose the scalable solution to ad-dress this problem. Moreover, we also show how the scal-able solution can be beneficially employed in an unequal error protection scenario to cope with the varying cover-age conditions of DVB-H

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