Published January 1, 2009
| Version v1
Conference paper
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On the rate of channel polarization
Creators
- 1. Bilkent Univ, Dept Elect Elect Engn, TR-06800 Ankara, Turkey
- 2. Ecole Polytech Fed Lausanne, Informat Theory Lab, CH-1015 Lausanne, Switzerland
Description
A bound is given on the rate of channel polarization. As a corollary, an earlier bound on the probability of error for polar coding is improved. Specifically, it is shown that, for any binary-input discrete memoryless channel W with symmetric capacity I(W) and any rate R < I(W), the polar-coding block-error probability under successive cancellation decoding satisfies P-e(N, R) <= 2(-N beta) for any beta < 1/2 when the block-length N is large enough.
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