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一種用于RaptorQ碼的降維快速譯碼算法

郭曉 張更新 徐任暉 牛大偉

郭曉, 張更新, 徐任暉, 牛大偉. 一種用于RaptorQ碼的降維快速譯碼算法[J]. 電子與信息學(xué)報(bào), 2015, 37(6): 1310-1316. doi: 10.11999/JEIT141037
引用本文: 郭曉, 張更新, 徐任暉, 牛大偉. 一種用于RaptorQ碼的降維快速譯碼算法[J]. 電子與信息學(xué)報(bào), 2015, 37(6): 1310-1316. doi: 10.11999/JEIT141037
Guo Xiao, Zhang Geng-xin, Xu Ren-hui, Niu Da-wei. Fast Decoding Algorithm for RaptorQ Code Using Matrix Dimensionality Reduction[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1310-1316. doi: 10.11999/JEIT141037
Citation: Guo Xiao, Zhang Geng-xin, Xu Ren-hui, Niu Da-wei. Fast Decoding Algorithm for RaptorQ Code Using Matrix Dimensionality Reduction[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1310-1316. doi: 10.11999/JEIT141037

一種用于RaptorQ碼的降維快速譯碼算法

doi: 10.11999/JEIT141037
基金項(xiàng)目: 

國家自然科學(xué)基金(91338201, 61032004)資助課題

Fast Decoding Algorithm for RaptorQ Code Using Matrix Dimensionality Reduction

  • 摘要: 針對(duì)新型高效數(shù)字噴泉碼RaptorQ碼譯碼復(fù)雜度高的問題,利用它是系統(tǒng)碼的特性,該文提出一種降維快速譯碼算法。該算法利用預(yù)先計(jì)算的逆矩陣,將譯碼過程中對(duì)接收編碼約束矩陣的求逆轉(zhuǎn)化為對(duì)更小維數(shù)矩陣的求逆,以降低譯碼復(fù)雜度。算法譯碼效果與現(xiàn)有譯碼算法等價(jià)。仿真結(jié)果表明,在信道符號(hào)刪除概率較低(小于0.2)時(shí),該算法的譯碼速度顯著高于現(xiàn)有算法。
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出版歷程
  • 收稿日期:  2014-08-04
  • 修回日期:  2014-10-31
  • 刊出日期:  2015-06-19

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