CUED Publications database

Performance of low density parity check codes as a function of actual and assumed noise levels

MacKay, DJC and Hesketh, CP (2003) Performance of low density parity check codes as a function of actual and assumed noise levels. Electronic Notes in Theoretical Computer Science, 74. pp. 91-98. ISSN 1571-0661

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Abstract

We investigate how sensitive Gallager's codes are, when decoded by the sum-product algorithm, to the assumed noise level. We have found a remarkably simple function that fits the empirical results as a function of the actual noise level at both high and low noise levels. © 2004 Elsevier B.V.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Machine Intelligence
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:00
Last Modified: 08 Dec 2014 02:38
DOI: 10.1016/S1571-0661(04)80767-9