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On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit

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Sae-Young Chung, Forney, G.D., Richardson, T.J., Urbanke, R.·2001·IEEE Communications Letters

Abstract

We develop improved algorithms to construct good low-density parity-check codes that approach the Shannon limit very closely. For rate 1/2, the best code found has a threshold within 0.0045 dB of the Shannon limit of the binary-input additive white Gaussian noise channel. Simulation results with a somewhat simpler code show that we can achieve within 0.04 dB of the Shannon limit at a bit error rate of 10/sup -6/ using a block length of 10/sup 7/.

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Metadata

Authors
Chung, S.-Y., Forney, G. D., Richardson, T. J., & Urbanke, R.
Venue
IEEE Communications Letters
Published
2001
Volume
5
Issue
2
Pages
58-60
ISSN
1089-7798 (ISSN-L)
OpenAlex
W2126259959
Cited by
1,539
References
12
FWCI
79.91
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit. https://app.cochat.ai/papers/10.1109/4234.905935
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Chung, S.-Y., Forney, G. D., Richardson, T. J., & Urbanke, R. (2001). On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit. IEEE Communications Letters. https://doi.org/10.1109/4234.905935

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