Finite size effects and error-free communication in Gaussian channels

Details Finite size effects and error-free communication in Gaussian channels Finite size effects and error-free communication in Gaussian channels

1999-07-27

arxiv.org/abs/cond-mat/9907424v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

10.1088/0305-4470/33/8/311

The efficacy of a specially constructed Gallager-type error-correcting code to communication in a Gaussian channel is being examined. The construction is based on the introduction of complex matrices, used in both encoding and decoding, which comprise sub-matrices of cascading connection values. The finite size effects are estimated for comparing the results to the bounds set by Shannon. The critical noise level achieved for certain code-rates and infinitely large systems nearly saturates the bounds set by Shannon even when the connectivity used is low.

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