Rapidly-Converging Series Representations of a Mutual-Information Integral

Torrieri, Don; Valenti, Matthew
January 2011
ISRN Communications & Networking;2011, Special section p1
Academic Journal
This paper evaluates a mutual-information integral that appears in EXIT-chart analysis and the capacity equation for the binary-input AWGN channel. Rapidly-converging series representations are derived and shown to be computationally efficient. Over a wide range of channel signal-to-noise ratios, the series are more accurate than the Gauss-Hermite quadrature and comparable to Monte Carlo integration with a very large number of trials.


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