Degree-matched check node decoding for regular and irregular LDPCs

Sheryl L Howard; Christian Schlegel; Vincent C. Gaudet

doi:10.1109/TCSII.2006.882204

Degree-matched check node decoding for regular and irregular LDPCs

Sheryl L Howard, Christian Schlegel, Vincent C. Gaudet

Research output: Contribution to journal › Article

21 Scopus citations

Abstract

This brief examines different parity-check node decoding algorithms for low-density parity-check (LDPC) codes, seeking to recoup the performance loss incurred by the min-sum approximation compared to sum-product decoding. Two degree-matched check node decoding approximations that depend on the check node degree d_c are presented. Both have low complexity and can be applied to any degree distribution. Simulation results show near sum-product decoding performance for both degree-matched check node approximations for regular and irregular LDPCs.

Original language	English (US)
Pages (from-to)	1054-1058
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	53
Issue number	10
DOIs	https://doi.org/10.1109/TCSII.2006.882204
State	Published - Oct 2006
Externally published	Yes

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Keywords

Iterative decoding
LDPC codes
Reduced-complexity decoding

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering

Cite this

Howard, S. L., Schlegel, C., & Gaudet, V. C. (2006). Degree-matched check node decoding for regular and irregular LDPCs. IEEE Transactions on Circuits and Systems II: Express Briefs, 53(10), 1054-1058. https://doi.org/10.1109/TCSII.2006.882204

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Access to Document

10.1109/TCSII.2006.882204