Method and apparatus for efficient data decoding

A method and apparatus for efficient data decoding is described. Data is encoded by an LDPC encoder using a G matrix. An LDPC decoder uses a modified H matrix to decode encoded blocks of data, the modified H matrix having at least two columns of its circulants swapped with each other. The encoded bl...

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Bibliographische Detailangaben
Hauptverfasser: Varanasi, Chandra, Tseng, Ko-Chung, Yeo, Engling
Format: Patent
Sprache:eng
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Zusammenfassung:A method and apparatus for efficient data decoding is described. Data is encoded by an LDPC encoder using a G matrix. An LDPC decoder uses a modified H matrix to decode encoded blocks of data, the modified H matrix having at least two columns of its circulants swapped with each other. The encoded blocks of data are stored, decoded and reconstructed in an order that considers the circulants in the columns that have been swapped.