A dichotomy of functions f(x,y) of correlated sources (x,y) from the viewpoint of the achievable rate region

  • Authors:
  • Te Sun Han;Kingo Kobayashi

  • Affiliations:
  • Senshu Univ., Kawasaki, Japan;Osaka Univ., Osaka, Japan

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 1987

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Abstract

Consider separate encoding of correlated sourcesX^{n}=(X_{l}, cdots ,X_{n}), Y^{n} = (Y_{l}, cdots ,Y_{n})for the decoder to reliably reproduce a function{F(X_{i}, Y_{i})}^{n}_{i=1}. We establish the necessary and sufficient condition for the set of all achievable rates to coincide with the Slepian-Wolf region whenever the probability densityp(x,y)is positive for all(x,y).