Equivalence perspectives in communication, source-channel connections and universal source-channel separation

Details Equivalence perspectives in communication, source-channel connections and universal source-channel separation Equivalence perspectives in communication, source-channel connections and universal source-channel separation

2009-11-19

arxiv.org/abs/0911.3872v1

Computer Science

Information Theory

Scientific paper

An operational perspective is used to understand the relationship between source and channel coding. This is based on a direct reduction of one problem to another that uses random coding (and hence common randomness) but unlike all prior work, does not involve any functional computations, in particular, no mutual-information computations. This result is then used to prove a universal source-channel separation theorem in the rate-distortion context where universality is in the sense of a compound ``general channel.''

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