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Author(s): |
Lei Wen, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Jing Lei, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Chaojing Tang, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China |
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Abstract: |
Based on structure of QC-LDPC Codes and relationship between parity check matrix and gen- erator matrix, this paper presents tow kinds of fast encoding algorithm. The special algorithm applies char- acter of quasi cyclic, and Gaussian eliminates on block unit, that deduce generator matrix directly. The general algorithm reorders columns on block unit, Gaussian eliminates and compute generator matrix. Si- mulation results show both two algorithms have character of quasi cyclic, low complexity and fast encod- ing.
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