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基于變量節(jié)點更新的LDPC碼加權(quán)比特翻轉(zhuǎn)譯碼算法

陶雄飛,  王躍東,  柳盼

陶雄飛, 王躍東, 柳盼. 基于變量節(jié)點更新的LDPC碼加權(quán)比特翻轉(zhuǎn)譯碼算法[J]. 電子與信息學報, 2016, 38(3): 688-693. doi: 10.11999/JEIT150720
引用本文: 陶雄飛, 王躍東, 柳盼. 基于變量節(jié)點更新的LDPC碼加權(quán)比特翻轉(zhuǎn)譯碼算法[J]. 電子與信息學報, 2016, 38(3): 688-693. doi: 10.11999/JEIT150720
TAO Xiongfei, WANG Yuedong, LIU Pan. Weighted Bit-flipping Decoding Algorithm for LDPC Codes Based on Updating of Variable Nodes[J]. Journal of Electronics & Information Technology, 2016, 38(3): 688-693. doi: 10.11999/JEIT150720
Citation: TAO Xiongfei, WANG Yuedong, LIU Pan. Weighted Bit-flipping Decoding Algorithm for LDPC Codes Based on Updating of Variable Nodes[J]. Journal of Electronics & Information Technology, 2016, 38(3): 688-693. doi: 10.11999/JEIT150720

基于變量節(jié)點更新的LDPC碼加權(quán)比特翻轉(zhuǎn)譯碼算法

doi: 10.11999/JEIT150720 cstr: 32379.14.JEIT150720
基金項目: 

國家自然科學基金(60902006)，中央高校基本科研業(yè)務(wù)費專項資金(201406)

Weighted Bit-flipping Decoding Algorithm for LDPC Codes Based on Updating of Variable Nodes

Funds: 

The National Natural Science Foundation of China (60902006), The Fundamental Research Funds for the Central Universities (201406)

  • 摘要: 該文提出一種改進的低密度奇偶校驗(Low Density Parity-Check, LDPC)碼的加權(quán)比特翻轉(zhuǎn)譯碼算法。該算法引入了變量節(jié)點的更新規(guī)則，對翻轉(zhuǎn)函數(shù)的計算更加精確，同時能夠有效弱化環(huán)路振蕩引起的誤碼。仿真結(jié)果表明，與已有的基于幅度和的加權(quán)比特翻轉(zhuǎn)譯碼算法(SMWBF)相比，在加性高斯白噪聲信道下，該文算法在復雜度增加很小的情況下獲得了誤碼率性能的有效提升。
    Abstract: An improved weighted bit-flipping decoding algorithm for LDPC codes is presented. The proposed algorithm introduces an updating rule for variable nodes to efficiently improve the reliability of the flipped bits and reduces the error codes caused by the oscillation of the loops. Simulation results show that the proposed algorithm achieves better BER performance than the Sum of Magnitude based Weighted Bit-Flipping (SMWBF) decoding algorithm over the additive white Gaussian noise channel with only a small increase in computational complexity.
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  • 文章訪問數(shù):  1500
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  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2015-06-15
  • 修回日期:  2015-11-27
  • 刊出日期:  2016-03-19

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