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Spatially Coupled LDPC Codes Constructed by Parallelly Connecting Multiple Chains.

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Title: Spatially Coupled LDPC Codes Constructed by Parallelly Connecting Multiple Chains.
Authors: Liu, Yang, Li, Ying, Chi, Yuhao
Source: IEEE Communications Letters; Sep2015, Vol. 19 Issue 9, p1472-1475, 4p
Abstract: A particular class of spatially coupled low-density parity-check (SC-LDPC) codes are constructed by parallelly connecting multiple different coupled chains. The connection structure is realized by edge exchanges between adjacent chains, which can help these chains support each other and improve the iterative decoding thresholds. By varying the number of the connected chains and the degree of each chain, a family of SC-LDPC codes with wide rate range can be obtained. Density evolution analysis shows that the decoding thresholds of the proposed codes are very close to Shannon limits and are slightly better than that constructed by a single chain over the binary erasure channel. [ABSTRACT FROM PUBLISHER]
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  Data: Spatially Coupled LDPC Codes Constructed by Parallelly Connecting Multiple Chains.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Yang%22">Liu, Yang</searchLink><br /><searchLink fieldCode="AR" term="%22Li%2C+Ying%22">Li, Ying</searchLink><br /><searchLink fieldCode="AR" term="%22Chi%2C+Yuhao%22">Chi, Yuhao</searchLink>
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  Data: IEEE Communications Letters; Sep2015, Vol. 19 Issue 9, p1472-1475, 4p
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A particular class of spatially coupled low-density parity-check (SC-LDPC) codes are constructed by parallelly connecting multiple different coupled chains. The connection structure is realized by edge exchanges between adjacent chains, which can help these chains support each other and improve the iterative decoding thresholds. By varying the number of the connected chains and the degree of each chain, a family of SC-LDPC codes with wide rate range can be obtained. Density evolution analysis shows that the decoding thresholds of the proposed codes are very close to Shannon limits and are slightly better than that constructed by a single chain over the binary erasure channel. [ABSTRACT FROM PUBLISHER]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Communications Letters is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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