| 一类环长至少为10的准循环LDPC码 |
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| 引用本文： | 范文同,马林华,林志国. 一类环长至少为10的准循环LDPC码[J]. 电视技术, 2015, 39(19): 59-62 |
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| 作者姓名： | 范文同 马林华 林志国 |
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| 作者单位： | 空军工程大学 航空航天工程学院,空军工程大学 航空航天工程学院,空军工程大学装备管理与安全工程学院 |
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| 摘 要： | 为扩展性能优良、易于工程实现的LDPC码的构造方法，提出了一类环长至少为10的准循环低密度奇偶校验(quasi-cyclic low-density parity-check, QC-LDPC)码的构造方法。该方法首先基于基矩阵和 准则[11]构造出环长至少为10的校验矩阵；然后，利用掩蔽矩阵对得到的校验矩阵进行变换；最终，构造出满秩的准循环LDPC码。理论分析和仿真结果表明，该类QC-LDPC码字构造灵活，在AWGN信道下具有优异的性能。
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| 关 键 词： | 通信 环长 满秩 准循环低密度奇偶校验码 |
| 收稿时间： | 2015-05-24 |
| 修稿时间： | 2015-06-17 |
A class of QC-LDPC codes with girth at least 10 |
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| FAN Wen-tong,MA Linhua and LIN Zhi-guo. A class of QC-LDPC codes with girth at least 10[J]. Ideo Engineering, 2015, 39(19): 59-62 |
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| Authors: | FAN Wen-tong MA Linhua LIN Zhi-guo |
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| Affiliation: | Aeronautics and Astronautics Engineering College of AFEU,Aeronautics and Astronautics Engineering College of AFEU,Equipment Management and Safety Engineering College of AFEU |
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| Abstract: | Aiming at extending the construction methods of quasi-cyclic low-density parity-check (QC-LDPC) codes with good performance and easy applications, a scheme for constructing a class of QC-LDPC codes with girth at least 10 is proposed. First, based on a basis matrix and the criterion proposed in [11], parity-check matrices with girth at least 10 were constructed. Then, these matrices were transformed with masking matrices. Finally, full rank QC-LDPC codes were obtained. Theory analysis and simulation results show that the construction of these QC-LDPC codes are flexible and they perform very well over the additive white Gaussian noise (AWGN) channel. |
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| Keywords: | communication girth full rank QC-LDPC codes |
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