Calculation of Mutual Information between Messages in Loops of a Tanner Graph

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Jul 2006Publisher:IEEEJournal:2006 IEEE International Symposium on Information Theory

Authors: Kalle Ruttik;

doi: 10.1109/isit.2006.262141

Calculation of Mutual Information between Messages in Loops of a Tanner Graph

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Abstract

This paper introduces a method for calculating the mutual information between the messages sent to a loop and and returning from a loop in a Tanner graph. This mutual information is defined as the difference between the cases when the loop is open and the loop is closed. The proposed method suggests to track the change of information in each node in the loop. The paper explains in detail how to calculate the amount of information change in a node.

Related Organizations

Helsinki University of Technology
Finland
University of Helsinki
Finland

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