Convergence Speed Analysis of Layered Decoding of Block-Type LDPC Codes

Min-Ho JANG; Beomkyu SHIN; Woo-Myoung PARK; Jong-Seon NO; Dong-Joon SHIN

doi:10.1587/transcom.E92.B.2484

IEICE Transactions on Communications

Online ISSN : 1745-1345
Print ISSN : 0916-8516

Regular Section

Convergence Speed Analysis of Layered Decoding of Block-Type LDPC Codes

Min-Ho JANG, Beomkyu SHIN, Woo-Myoung PARK, Jong-Seon NO, Dong-Joon SHIN

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Keywords: block-type low-density parity-check (B-LDPC) codes, convergence speed, density evolution, layered decoding

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2009 Volume E92.B Issue 7 Pages 2484-2487

DOI https://doi.org/10.1587/transcom.E92.B.2484

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Abstract

In this letter, we analyze the convergence speed of layered decoding of block-type low-density parity-check codes and verify that the layered decoding gives faster convergence speed than the sequential decoding with randomly selected check node subsets. Also, it is shown that using more subsets than the maximum variable node degree does not improve the convergence speed.

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