On exact asymptotics of the error probability in channel coding: symmetric channels

29 Aug 2019 Altuğ Yücel Wagner Aaron B.

The exact order of the optimal sub-exponentially decaying factor in the classical bounds on the error probability of fixed-length codes over a Gallager-symmetric discrete memoryless channel with and without ideal feedback is determined. Regardless of the availability of feedback, it is shown that the order of the optimal sub-exponential factor exhibits a dichotomy... (read more)

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  • INFORMATION THEORY
  • INFORMATION THEORY