The Necessary and Sufficient Condition of a Class of Quasi-Cyclic LDPC Codes without Girth Four
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概要
- 論文の詳細を見る
This letter presents a necessary and sufficient condition for a class of quasi-cyclic low-density parity-check (QC LDPC) codes without girth four. Girth-four property of a class of QC LDPC codes is investigated. Good QC LDPC codes without girth four can be constructed by selecting proper shifting factors according to the proposed theorems. Examples are provided to verify the theorems. The simulation results show that the QC LDPC codes without girth four achieve a better BER performance compared with that of randomly constructed LDPC codes.
- （社）電子情報通信学会の論文
- 2009-01-01
著者
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Zhao Ying
Institute of Bioengineering and Nanotechnology
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Zhao Ying
Institute Of Information Science Beijing Jiaotong University
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XIAO Yang
Institute of Information Science, Beijing Jiaotong University
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Xiao Yang
Institute Of Information Science Beijing Jiaotong University
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