• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 17 Issue 5
Oct.  2004
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Article Contents
WENHong, HUFei, JINFan, DUANHui-yong. A Family of Irregular LDPC Codes Based onOptical Orthogonal Codes[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 665-669.
Citation: WENHong, HUFei, JINFan, DUANHui-yong. A Family of Irregular LDPC Codes Based on Optical Orthogonal Codes[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 665-669.

A Family of Irregular LDPC Codes Based on Optical Orthogonal Codes

  • Publish Date: 25 Oct 2004
  • Based on the optical orthogonal codes, a method for constructing irregular LDPC (low-density parity check) codes was presented. These LDPC codes are quasi-cyclic codes and can be encoded with low complexity with a linear relationship to code length. These codes haveTanner graphs free of 4-cycles. They performwellwith the sum-product iterative decoding. Comparedwith random codes and regularLDPC codes based on the optical orthogonal codes with similar parameters, they have decoding performance gains respectively about 0.3 and 0.15 dB when bit error rate is 10-5.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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