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On the Excess Distortion Exponent for Memoryless Gaussian Source-Channel Pairs
2006 IEEE International Symposium on Information Theory
For a memoryless Gaussian source under the squared-error distortion fidelity criterion and a memoryless additive Gaussian noise channel with a quadratic power constraint at the channel input, upper and lower bounds for the joint source-channel coding excess distortion exponent (which is the exponent of the probability of excess distortion) are established. A necessary and sufficient condition for which the two bounds coincide is provided, thus exactly determining the exponent. This condition isdoi:10.1109/isit.2006.261928 dblp:conf/isit/ZhongAC06 fatcat:x34elldjhzbrfhwkluzml43x6m