DEVICE AND METHOD FOR ENCODING OR DECODING MESSAGES BY MEANS OF A POLAR CODE

    公开(公告)号:US20220376707A1

    公开(公告)日:2022-11-24

    申请号:US17875082

    申请日:2022-07-27

    Abstract: A device is configured for encoding an input sequence comprising message bits into a codeword using a polar code. The device is configured to sequentially encode each of a plurality of blocks of the input sequence by applying a sliding window to the input sequence, wherein each block of the input sequence is encoded based on an XOR operation of the block and a previous block of the input sequence to obtain a codeword block of the codeword, and sequentially output each obtained codeword block of the codeword.

    APPARATUSES AND METHODS FOR MAPPING FROZEN SETS BETWEEN POLAR CODES AND PRODUCT CODES

    公开(公告)号:US20210203364A1

    公开(公告)日:2021-07-01

    申请号:US17201891

    申请日:2021-03-15

    Abstract: A method generates a frozen vector associated with a polar code codeword on the basis of a frozen matrix associated with a product code codeword, the frozen matrix being of size Nc×Nr. The method includes replicating a first matrix row of the frozen matrix Nc times to generate an expanded matrix row; replicating a first matrix column of the frozen matrix Nr times to generate an expanded matrix column; generating the frozen vector on the basis of the expanded matrix row and the expanded matrix column. The disclosure further provides a method for generating a frozen matrix associated with a product code codeword on the basis of a frozen vector associated with a polar code codeword, wherein the product code codeword comprises a matrix of size Nc×Nr, and the frozen vector comprises a vector of size N with a plurality of bits.

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