Comparison of Physical-Layer and Application-Layer Diversity for Video Streaming Over Wireless Rayleigh Fading Channels

In this paper, we compare the performance of the diversity approach at the application layer and that at the physical layer for H.264/AVC encoded streaming video transmission in a wireless system with two independent channels. The application layer diversity is achieved by using multiple description...

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Bibliographic Details
Main Authors: Choi, L. U., Ivrlac, M. T., Steinbach, E., Nossek, J. A.
Format: Conference Proceeding
Language:English
Subjects:
Automatic voltage control
Channel coding
Decoding
Decorrelation
Diversity methods
Diversity reception
Fading
Fading channels
Modeling
Physical layer
Source coding
Streaming media
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Description
Summary:In this paper, we compare the performance of the diversity approach at the application layer and that at the physical layer for H.264/AVC encoded streaming video transmission in a wireless system with two independent channels. The application layer diversity is achieved by using multiple description source coding, while the physical layer diversity is obtained by channel coding over the two channels. Numerical results show that PHY layer diversity always outperforms the application layer diversity.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2006.313150