| n-Channel Symmetric Motion-Compensated Multiple Description Coding for Video Communications over OFDM Networks
Dr. Yee Sin Chan (Contact Author)
ECE Dept., University of Miami,
1251 Memorial Dr. EB 406
Coral Gables, FL 33124
Phone: (305) 284 3340 Fax: (305) 284 4044
Email:chanys@ieee.org
Citizenship: Hong Kong
Dr. Pamela C. Cosman
Professor and Co-Director
Department of Electrical and Computer Engineering
Center for Wireless Communications
9500 Gilman Drive, Mail Code 0407
University of California, San Diego
La Jolla, CA 92093-0407
Phone: (858) 822 0157
Email: pcosman@code.ucsd.edu
Citizenship: U.S.A.
Dr. Laurence B. Milstein
Ericsson Endowed Chair in Wireless Communication Access Techniques
Professor
Department of Electrical and Computer Engineering
9500 Gilman Drive, Mail Code 0407
University of California, San Diego
La Jolla, CA 92093-0407
Phone: (858) 534-3096 Fax: (858) 534-2486
Email: milstein@ece.ucsd.edu
Citizenship: U.S.A.
Abstract—We propose an n-channel symmetric motioncompensated multiple description (MD) coding and transmission scheme for the delivery of motion compensated fine granular scalable (MC-FGS) video over multicarrier orthogonal frequency division multiplexing (OFDM) systems, utilizing the concepts of partial and leaky predictions. We investigate the proposed MD coding and transmission scheme using a cross-layer design perspective. In particular, we construct the symmetric motion compensated MD codes based on the diversity order of the channel, defined as the ratio of the overall bandwidth of the system to the coherence bandwidth of the channel. We show that knowing the diversity order of a physical channel can assist an MC-FGS video coder in selecting the motion compensation prediction point, as well as on the use of leaky prediction. More importantly, we illustrate how the side information can reduce the drift management problem associated with the construction of symmetric motion-compensated MD codes.
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