摘要:
A method of encoding/decoding using an LDPC code is disclosed, by which performance is enhanced and by which complexity is reduced. In encoding/decoding using an LDPC code defined by an (n−k)xn parity check matrix H, the present invention includes the step of performing the encoding/decoding input source data using the parity check matrix H including Hp and Hd to Meet H=[Hd|Hp] (where Hd has (n−k)×k dimensions, Hp has (n−k)×(n−k) dimensions), wherein if the Hp comprises a plurality of zXz sub-matrices, each of the sub-matrices is an identity matrix or a zero matrix and wherein a column weight of each column of the Hp is at least 2.
摘要翻译:公开了一种使用LDPC码进行编码/解码的方法,通过该方法提高了性能并降低了复杂度。 在使用由(nk)×n个奇偶校验矩阵H定义的LDPC码的编码/解码中,本发明包括使用包括Hp和Hd的奇偶校验矩阵H来执行编码/解码输入源数据的步骤,以满足H = [ Hd | Hp](其中Hd具有(nk)×k维度,Hp具有(nk)×(nk)维度),其中如果Hp包括多个zXz子矩阵,则每个子矩阵是单位矩阵, 零矩阵,其中Hp的每列的列权重至少为2。
摘要:
A method of controlling data communication in a wireless communication system comprises measuring channel quality from data received from a base station having multiple antennas, wherein the base station and a mobile station are in a closed loop space-time coding (STC) communication. The method also comprises determining a first weight matrix based on a number of the multiple antennas of the base station, the weight matrix comprising weight elements. The method also comprises determining a second weight matrix from the first weight matrix in response to a predetermined condition, wherein the second weight matrix is associated with controlling data output using the multiple antennas of the base station for subsequent transmission. The method also comprises providing a number of STC outputs to the base station, wherein the number of STC outputs is associated with the second weight matrix.
摘要:
A method of encoding data using low density parity check (LDPC) code defined by a m×n parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of z×z sub-matrices of which row weights and column weights are ‘0’ or ‘1’.
摘要:
A method of encoding and decoding using an LDPC code is disclosed, by which a memory for storing a parity check matrix necessary for the encoding or decoding using the LDPC code and calculation amount and complexity necessary for the encoding or decoding can be reduced. The present invention includes a step of encoding an input data using a parity check matrix H having a configuration of H=[Hd|Hp] (Hd is (n−k)×k dimensional, Hp is (n−k)×(n−k) dimensional, k is a bit number of the input data, and n is a bit number of a codeword), wherein if the Hd comprises a plurality of sub-matrices, each of the sub-matrices has predetermined regularity in a row or column weight.
摘要翻译:公开了一种使用LDPC码进行编码和解码的方法,通过该方法可以减少用于使用LDPC码进行编码或解码所需的奇偶校验矩阵的存储器以及用于编码或解码所需的计算量和复杂度。 本发明包括使用具有H = H H(H D)H(H D)的配置的奇偶校验矩阵H对输入数据进行编码的步骤 (nk)×k维,H(nk)×(nk)维,k是输入数据的位数,n是码字的位数) ,其中如果H 包括多个子矩阵,则每个子矩阵具有预定的行或列权重的规则性。
摘要:
A variable code rate adaptive encoding/decoding method using LDDC code is disclosed, in which an input source data is encoded using the LDPC (low density parity check) code defined by a first parity check matrix configured with a plurality of submatrices. The present invention includes the steps of generating a second parity check matrix corresponding to a code rate by reducing a portion of a plurality of submatrices configuring a first parity check matrix according to the code rate to be applied to encoding an input source data and encoding the input source data using the second parity check matrix.
摘要:
A variable code rate adaptive encoding/decoding method using LDDC code is disclosed, in which an input source data is encoded using the LDPC (low density parity check) code defined by a first parity check matrix configured with a plurality of submatrices. The present invention includes the steps of generating a second parity check matrix corresponding to a code rate by reducing a portion of a plurality of submatrices configuring a first parity check matrix according to the code rate to be applied to encoding an input source data and encoding the input source data using the second parity check matrix.
摘要:
A method of encoding data using low density parity check (LDPC) code defined by a m×n parity check matrix is disclosed. More specifically, the method includes encoding input source data using the parity check matrix, wherein the parity check matrix comprises a plurality of z×z sub-matrices of which row weights and column weights are ‘0’ or ‘1’.
摘要:
A method of controlling data communication in a wireless communication system comprises measuring channel quality from data received from a base station having multiple antennas, wherein the base station and a mobile station are in a closed loop space-time coding (STC) communication. The method also comprises determining a first weight matrix based on a number of the multiple antennas of the base station, the weight matrix comprising weight elements. The method also comprises determining a second weight matrix from the first weight matrix in response to a predetermined condition, wherein the second weight matrix is associated with controlling data output using the multiple antennas of the base station for subsequent transmission. The method also comprises providing a number of STC outputs to the base station, wherein the number of STC outputs is associated with the second weight matrix.
摘要:
A method of encoding/decoding using an LDPC code and apparatus thereof are disclosed, by which a memory for storing a parity check matrix can be saved. The present invention includes generating a parity check matrix by expanding a base matrix including a permutation type defining a permutation matrix as at least one element, wherein the permutation matrix is generated from permutating a sequence of at least one of rows and columns of at least one base permutation matrix or rotating the at least one base permutation matrix and encoding or decoding the input data using the parity check matrix.
摘要:
A method of encoding and decoding using an LDPC code is disclosed, by which a memory for storing a parity check matrix necessary for the encoding or decoding using the LDPC code and calculation amount and complexity necessary for the encoding or decoding can be reduced. The present invention includes a step of encoding an input data using a parity check matrix H having a configuration of H=[Hd|Hp] (Hd is (n−k)×k dimensional, Hp is (n−k)×(n−k) dimensional, k is a bit number of the input data, and n is a bit number of a codeword), wherein if the Hd comprises a plurality of sub-matrices, each of the sub-matrices has predetermined regularity in a row or column weight.