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Error-Resilient Video Communications Over CDMA Networks With a Bandwidth Constraint

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3 Author(s)
Yushi Shen ; Dept. of Electr. & Comput. Eng., California Univ. ; Cosman, P.C. ; Milstein, L.B.

We present an adaptive video transmission scheme for use in a code-division multiple-access network, which incorporates efficient bandwidth allocation among source coding, channel coding, and spreading under a fixed total bandwidth constraint. We derive the statistics of the received signal, as well as a theoretical bound on the packet drop rate at the receiver. Based on these results, a bandwidth allocation algorithm is proposed at the packet level, which incorporates the effects of both the changing channel conditions and the dynamics of the source content. Detailed simulations are done to evaluate the performance of the system, and the sensitivity of the system to estimation error is presented

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Image Processing, IEEE Transactions on  (Volume:15 ,  Issue: 11 )