Hybrid decoding method suitable for low-density parity check codes
A low-density parity and hybrid decoding technology, applied in error detection coding using multi-bit parity bits, error correction/detection using block codes, coding, etc. High complexity, inability to meet requirements and other problems, to achieve good complexity and decoding performance, reduce complexity, and eliminate the dependence of Gaussian channel variance estimation
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Embodiment 1
[0087] figure 2 It is a block schematic diagram of a 1 / 4 code rate LDPC code (Code1-R14-N8448) parity check matrix, its parity check matrix N=8448, M=6400, information bit K=2048, and 256 bits before coding bits are punctured ;The coded block matrix form is specifically described as follows, the C matrix has 3 rows and 47 columns, and the value of each element is -1; the D matrix has 47 rows and 47 columns, except the diagonal element is 0, other elements are - 1; Matrix A and B are 25 rows and 19 columns, see Table 1 and Table 2 for specific element values.
[0088] Table 1: Code1-R14-N8448 code block check matrix A block (25*19)
[0089] 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-1
14
83
111
68
66
30
28
29
9
42
20
11
55
22
12
117
1
0
0
43
-1
101
62
121
108
103
114
91
70
33
116
3
120
61
72
0
-1
0
...
Embodiment 2
[0098] Figure 4 It is a schematic block diagram of a 1 / 5 code rate LDPC code (Code2-R15-N10496) parity check matrix, its parity check matrix N=10496, M=8448, information bit K=2048, and 256 bits before the coding bit is punctured ;The coded block matrix form is specifically described as follows, the C matrix has 3 rows and 63 columns, and the value of each element is -1; the D matrix has 63 rows and 63 columns, except the diagonal element is 0, other elements are - 1; Matrix A and B are 33 rows and 19 columns, see Table 4 and Table 5 for specific element values.
[0099] Table 4: Code2-R15-N10496 code block check matrix A block (33*19)
[0100] 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-1
14
83
111
68
66
30
28
29
9
42
20
11
55
22
12
117
1
0
0
43
-1
101
62
121
108
103
114
91
70
33
116
3
120
61
72
0
-1
...
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