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Resource Allocation for Error Resilient Video Coding Over AWGN Using Optimization Approach

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2 Author(s)
Cheolhong An ; Electr. & Comput. Eng. Dept., Univ. of California, San Diego, La Jolla, CA ; Truong Q. Nguyen

The number of slices for error resilient video coding is jointly optimized with 802.11a-like media access control and the physical layers with automatic repeat request and rate compatible punctured convolutional code over additive white gaussian noise channel as well as channel times allocation for time division multiple access. For error resilient video coding, the relation between the number of slices and coding efficiency is analyzed and formulated as a mathematical model. It is applied for the joint optimization problem, and the problem is solved by a convex optimization method such as the primal-dual decomposition method. We compare the performance of a video communication system which uses the optimal number of slices with one that codes a picture as one slice. From numerical examples, end-to-end distortion of utility functions can be significantly reduced with the optimal slices of a picture especially at low signal-to-noise ratio.

Published in:

IEEE Transactions on Image Processing  (Volume:17 ,  Issue: 12 )