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Worst-case mutual information trajectories in concatenated codes with asymptotic interleavers. (English) Zbl 1071.94516
Blaum, Mario (ed.) et al., Information, coding and mathematics. Proceedings of workshop honoring Professor Bob McEliece on his 60th birthday, Pasadena, CA, USA, May 24–25, 2002. Boston, MA: Kluwer Academic Publishers (ISBN 1-4020-7079-9/hbk). The Kluwer International Series in Engineering and Computer Science 687, 45-54 (2002).
Summary: We present preliminary results on extremal (worst and best) average mutual informational values carried by the extrinsic loglikelihood under the constraint of a given mean and variance while accounting for the consistency feature of loglikelihoods. This is done in an effort to gain insight into the iterative decoding procedure without resorting to the classical “Gaussian approximation”.
For the entire collection see [Zbl 1054.94001].
94A15 Information theory (general)
94B35 Decoding
62B10 Statistical aspects of information-theoretic topics
49J22 Optimal control problems with integral equations (existence) (MSC2000)