On the design of low-density parity-check codes within 0.0045 dB of the shannon limit (2001)
| Venue: | IEEE Communications Letters |
| Citations: | 135 - 6 self |
BibTeX
@ARTICLE{Chung01onthe,
author = {Sae-young Chung and G. David Forney and Thomas J. Richardson and Rüdiger Urbanke},
title = {On the design of low-density parity-check codes within 0.0045 dB of the shannon limit},
journal = {IEEE Communications Letters},
year = {2001},
volume = {5},
pages = {58--60}
}
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Abstract
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 T using a block length of 10 U. Index Terms—Density evolution, low-density parity-check codes, Shannon limit, sum-product algorithm. I.
