| 非顺序的 TPC 软判决迭代译码算法 |
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| 引用本文： | 卢昊,张佳岩,马永奎.非顺序的 TPC 软判决迭代译码算法[J].吉林大学学报(信息科学版),2018,36(1):20-25. |
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| 作者姓名： | 卢昊 张佳岩 马永奎 |
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| 作者单位： | 哈尔滨工业大学 通信技术研究所, 哈尔滨 150001 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对 Turbo 乘积码(TPC: Turbo Product Code)距香农极限性能差距较大的问题, 将非顺序(NS: Non-
Sequential)译码推广到软输入软输出(SISO: Soft-Input/ Soft-Output)Turbo 乘积码译码器中, 以提高误码率性能。
该算法根据决定码字的可靠度选择更可靠的行或列译码, 跳过低于可靠度门限的行或列, 以避免迭代过程中引
入额外错误而降低译码性能。 仿真结果表明, 对于以扩展汉明码(64,57,4)为子码的 TPC 码, NS-Turbo 乘积码; 迭代译码; 非顺序译码; 信道编码
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| 关 键 词： | ,Turbo,乘积码,迭代译码,信道编码,非顺序译码, |
| 收稿时间： | 2017-10-30 |
Non-Sequential Decoding Algorithm for Soft Iterative Turbo Product Codes |
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| LU Hao,ZHANG Jiayan,MA Yongkui.Non-Sequential Decoding Algorithm for Soft Iterative Turbo Product Codes[J].Journal of Jilin University:Information Sci Ed,2018,36(1):20-25. |
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| Authors: | LU Hao ZHANG Jiayan MA Yongkui |
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| Institution: | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | In order to reduce the gap between the TPC(Turbo Product Code)and Shannon's limit performance, we generalized the Non-sequential decoding algorithm for SISO(Soft-Input/Soft-Output)decoding of TPC.The proposed algorithm only decodes the reliable component codes to avoid introducing extra errors.The simulation results show that the error rate of the NS-SISO decoding algorithm is only half of the standard SISO algorithm when Hamming code(64,57,4)is used as component code of TPC.It can be seen that the new algorithm has a visible error performance gain. |
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| Keywords: | turbo product codes(TPC) non-sequential decodes iterative decodes channel coding |
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