1Colorado State University, Ft. Collins Fall 2008 ECE 516: Information Theory Lecture 16 October 23, 2008 Recap: 7.13 Joint Source-channel Coding Theorem 1.CH<is sufficient and necessary for reliable information transmission. 2.We do not lose anything by separating source and channel coding. 7.14 Channel Coding and Error Exponent ()()( ) ()()RExypxpRPnryxne=⎥⎥⎦⎤⎢⎢⎣⎡⎥⎦⎤⎢⎣⎡−−≥−∑ ∑∈+∈+≤<YXρρρρ11110|logmaxlog1which is known as the random coding exponent. ()()RnEnereP−≤
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