A Bandwidth expanding scheme for communication channels with noiseless feedback in the presence of unknown jamming noise |
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| Authors: | Tamer Ba?ar Tangül Ü Ba?ar |
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| Institution: | Department of Electrical Engineering and Coordinated Science Laboratory, University of Illinois, 1101 W. Springfield Avenue, Urbana, IL 61801, USA U.S.A. |
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| Abstract: | This paper treats the problem of transmitting a Gaussian discrete-time Markov process over a time-discrete additive white Gaussian channel with noiseless feedback which is subjected to statistically unknown jamming noise (satisfying a given power constraint). The channel is used more than once during the interval between the production of successive source letters, and the jamming noise is either allowed to be correlated with the encoder output, or forced to be totally independent of it. The complete solution obtained in the paper under a minimax criterion indicates that the optimum encoder-decoder structures are linear,and the least favorable jamming noise is a Gaussian process. |
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