| 一种改进的LDPC码比特反转解码算法 |
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| 引用本文： | 董桂强,徐鹰,朱近康.一种改进的LDPC码比特反转解码算法[J].无线通信技术,2008,17(3):14-18. |
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| 作者姓名： | 董桂强 徐鹰 朱近康 |
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| 作者单位： | 中国科学技术大学,电子工程与信息科学系,合肥,230027 |
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| 摘 要： | 本文提出了一种改进的LDPC码的比特反转解码算法.该算法考虑了如下两个方面的影响:校验错误的方程中所含有的比特数目对各个比特的错误概率的影响,以及校验错误的方程中,所含有的那些比特各自所参与的校验错误的方程数目对各个比特的错误概率的影响.该解码算法不需要软信息即可进行解码,其解码复杂度较低.仿真结果表明,本文提出的改进算法比原来的比特反转算法有较大的性能提高,并且对于大girth的LDPC码,该解码算法的性能甚至优于多种利用软信息的比特反转算法.
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| 关 键 词： | LDPC码 解码 比特反转算法 |
An Improved Bit-flipping Decoding Algorithm for Low-density Parity-check Codes |
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| DONG Gui-qiang,XU Ying,ZHU Jin-kang.An Improved Bit-flipping Decoding Algorithm for Low-density Parity-check Codes[J].Wireless Communication Technology,2008,17(3):14-18. |
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| Authors: | DONG Gui-qiang XU Ying ZHU Jin-kang |
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| Affiliation: | DONG Gui-qiang,XU Ying,ZHU Jin-kang(EEIS,USTC,Hefei,China 230027) |
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| Abstract: | An improved bit-flipping decoding algorithm is proposed for low-density parity-check(LDPC) codes in this paper.Two influences on error probabilities of code bits are considered: the influence of the number of code bits included in an unsatisfied check,and the influence of the number of unsatisfied checks of each code bit.No soft information is required for decoding.Simulation results show that improvement on performance is observed for the proposed algorithm,and it provides better performance over several s... |
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| Keywords: | LDPC codes decoding bit-flipping decoding |
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