| 基于Simulink的LDPC码仿真研究 |
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| 引用本文： | 王卫华,樊红莉.基于Simulink的LDPC码仿真研究[J].湖北汽车工业学院学报,2012,26(1):49-52. |
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| 作者姓名： | 王卫华 樊红莉 |
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| 作者单位： | 湖北汽车工业学院电气与信息工程学院,湖北十堰,442002 |
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| 基金项目： | 湖北省高等学校优秀中青年科技创新团队计划项目 |
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| 摘 要： | 在传统LDPC的构造方法基础上,提出了一种具有满秩特点的校验矩阵构造算法,在AWGN信道下结合Simulink进行了系统级仿真。结果表明,新的校验矩阵构造出的LDPC码系统性能优于Galager构造的LDPC码系统性能,LDPC码的短码误码性能劣于长码,LDPC码的码率越高性能越低,LDPC译码增加迭代次数后性能提升。
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| 关 键 词： | 低密度奇偶校验码 校验矩阵 Simulink |
Simulation Study of LDPC Codes Based on Simulink |
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| Wang Weihua
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Fan Hongli.Simulation Study of LDPC Codes Based on Simulink[J].Journal of Hubei Automotive Industries Institute,2012,26(1):49-52. |
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| Authors: | Wang Weihua Fan Hongli |
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| Institution: | (School of Electrical & Information Engineering,Hubei Automotive Industries Institute,Shiyan 442002,China) |
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| Abstract: | Based on the traditional construction methods for LDPC,a construction algorithm of full rank check matrix is presented,which is simulated with Simulink under the condition of AWGN channel.Simulation result shows that the system performance of LDPC constructed from the new check matrix is superior to that of LDPC constructed by Galager,the error code performance of the LDPC short code is inferior to that of the long code,the higher LDPC code rate has and the lower code performance is,LDPC decoding performance can improve when the number of iterations increases. |
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| Keywords: | low-density parity-check codes(LDPC) check matrix Simulink |
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