Abstract:
A deterministic structure for controlled distribution of weight-2 columns is proposed for a parity-check matrix H that reduces the occurrence of undetected frame errors and significantly enhances the code performance in comparison to a randomly-constructed parity-check matrix. H comprises a non-deterministic section H1 and a deterministic section H2, and wherein H2 comprises a first part comprising a column h having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i=j, 1 for 1=j+1, 0 elsewhere.
Abstract translation:对于奇偶校验矩阵H,提出了权重2列的受控分布的确定性结构,其减少了未检测到的帧错误的发生,并且与随机构造的奇偶校验矩阵相比显着增强了代码性能。 H包括非确定性部分H1和确定性部分H2,并且其中H2包括包括具有大于2的奇数权重的列h的第一部分,以及包括用于行i的矩阵元素,第j列等于1的第二部分, i = j,1表示1 = j + 1,0。
Abstract:
A method and apparatus for encoding and decoding data is described herein. During operation, data enters a convolutional encoder (101). The encoder encodes the information bits from the data at encoding rate (1/R0) to produce data symbols vectors P 0 , P 1 ,..., P R0 . Vectors P1,..., P R0 are each interleaved separately to form vectors P 0 ', P 1 ',..., P R0 '. A multiplexer (105) multiplexes P 0 ', P 1 ',..., P R0 ' to produce vector Q. The multiplexed interleaved symbols Q are input into symbol adder/remover (107) where appropriate symbols are added or removed to match an over-the-channel transmission rate. Finally, vector Q' is transmitted via over-the-channel transmission.
Abstract:
A method and apparatus for encoding and decoding data is described herein. During operation, data enters a convolutional encoder (101). The encoder encodes the information bits from the data at encoding rate (1/R0) to produce data symbols vectors P 0 , P 1 ,..., P R0 . Vectors P1,..., P R0 are each interleaved separately to form vectors P 0 ', P 1 ',..., P R0 '. A multiplexer (105) multiplexes P 0 ', P 1 ',..., P R0 ' to produce vector Q. The multiplexed interleaved symbols Q are input into symbol adder/remover (107) where appropriate symbols are added or removed to match an over-the-channel transmission rate. Finally, vector Q' is transmitted via over-the-channel transmission.
Abstract:
A deterministic structure for controlled distribution of weight-2 columns is proposed for a parity-check matrix H that reduces the occurrence of undetected frame errors and significantly enhances the code performance in comparison to a randomly-constructed parity-check matrix. H comprises a non-deterministic section H1 and a deterministic section H2, and wherein H2 comprises a first part comprising a column h having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i=j, 1 for 1=j+1, 0 elsewhere.
Abstract translation:针对奇偶校验矩阵H提出了用于加权2列的受控分布的确定性结构,其与随机构建的奇偶校验矩阵相比减少了未检测到的帧误差的出现并显着增强了代码性能。 H包括非确定性部分H1和确定性部分H2,并且其中H2包括第一部分和第二部分,第一部分包括具有大于2的奇数权重的列h,第二部分包括行i,列j的矩阵元素, i = j,1代表1 = j + 1,0其他地方。