Title :
Comparison of Physical-Layer and Application-Layer Diversity for Video Streaming Over Wireless Rayleigh Fading Channels
Author :
Choi, L.U. ; Ivrlac, Michel T. ; Steinbach, Eckehard ; Nossek, Josef A.
Author_Institution :
Inst. of Commun. Networks, Munich Univ. of Technol., Germany
Abstract :
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.
Keywords :
Rayleigh channels; channel coding; code standards; diversity reception; source coding; video coding; video communication; video streaming; H.264-AVC encoding; advanced video coding; application-layer diversity; channel coding; multiple description source coding; physical-layer diversity; streaming video transmission; wireless Rayleigh fading channel; Automatic voltage control; Channel coding; Decoding; Decorrelation; Diversity methods; Diversity reception; Fading; Physical layer; Source coding; Streaming media; Diversity methods; Fading channels; Modeling;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.313150
