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This article is part of the series Video Adaptation for Heterogeneous Environments.

Open Access Research Article

Comparison of Error Protection Methods for Audio-Video Broadcast over DVB-H

Miska M Hannuksela1*, Vinod Kumar Malamal Vadakital2 and Satu Jumisko-Pyykkö3

Author Affiliations

1 Nokia Research Center, P.O. Box 1000, Tampere 33721, Finland

2 Institute of Signal Processing, Tampere University of Technology, P.O. Box 553, Tampere 33101, Finland

3 Institute of Human-Centered Technology, Tampere University of Technology, P.O. Box 553, Tampere 33101, Finland

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EURASIP Journal on Advances in Signal Processing 2007, 2007:071801  doi:10.1155/2007/71801

The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2007/1/071801

Received:1 September 2006
Revisions received:21 February 2007
Accepted:16 April 2007
Published:24 June 2007

© 2007 Hannuksela et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The paper discusses methods for robust audio-video broadcast over the digital video broadcasting-handheld (DVB-H) system. DVB-H includes a link-layer forward error correction (FEC) scheme known as multiprotocol encapsulation (MPE) FEC, which provides equal error protection (EEP) to the transmitted media streams. Several approaches for unequal error protection (UEP) have been proposed in the literature, and the applicability of some of them to DVB-H is analyzed in the paper. A link-layer UEP method based on priority segmentation of the media streams is chosen for more detailed analysis. According to the method, audio and the most important coded video pictures are protected by MPE-FEC more robustly compared to the remaining coded pictures. In order to compare EEP and UEP in a DVB-H environment, an error-prone DVB-H channel was simulated, audio-visual clips were sent through it, and a comprehensive subjective quality evaluation was conducted in a controlled laboratory environment. The results of the subjective evaluation revealed that the use of UEP improves the subjective quality of some test clips noticeably when the channel conditions were severe, while in other tested channel conditions and clips, UEP and EEP performed equally well.


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