LDPC Decoding: VLSI Architectures and Implementations
LDPC Decoding: VLSI Architectures and Implementations
LDPC Decoding: VLSI Architectures and Implementations
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Non-Layered Decoder Architecture<br />
for Array <strong>LDPC</strong> codes<br />
PS out12<br />
FS out1<br />
Q initial<br />
Q<br />
CNU1<br />
CNU2<br />
R<br />
CNU61<br />
Q 1,1<br />
R 1,1<br />
CNU<br />
Array<br />
Block<br />
Row 1<br />
Q 61,1<br />
Q 1,2<br />
CNU<br />
Array<br />
Block<br />
Q 61,2 Row 2<br />
Q 61,1<br />
Q 1,3<br />
CNU<br />
Array Q 61,2<br />
Block<br />
Q 61,3<br />
Row 3<br />
R 2,1<br />
R 61,1<br />
Q<br />
PS out92<br />
2<br />
22<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU62 R<br />
Q CNU63 R<br />
PS ou FS<br />
R ou<br />
t t FS out6<br />
PS ou FS ou<br />
t t<br />
PS out62<br />
FS<br />
PS out6<br />
out93<br />
2<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
PS out63<br />
3<br />
PS out12<br />
PS<br />
FS out1<br />
out91<br />
1<br />
21<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU122 R<br />
PS ou FS ou<br />
t t<br />
PS out12<br />
FS out122<br />
2<br />
VNU 1<br />
VNU 2<br />
VNU 61<br />
Q 1,1<br />
Q 1,2Q1,3<br />
Q<br />
Q 61,1Q61,2<br />
PS out18 PS out18<br />
FS<br />
2<br />
out182<br />
3<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU123 R<br />
PS ou FS ou<br />
PS out18 PS out12 FS out1<br />
PS<br />
t t<br />
out12<br />
FS out1 3 3 83<br />
3<br />
23<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU124<br />
PS ou FS<br />
R<br />
ou<br />
PS out12<br />
PS out12 t t<br />
4<br />
FS out124<br />
3<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU125<br />
PS ou<br />
FS ou<br />
R<br />
PS out12<br />
t<br />
t<br />
5 FS out125<br />
Q 61,3<br />
PS out18<br />
PS out18<br />
FS out183<br />
3 2<br />
PS<br />
PS in<br />
in FS in<br />
2<br />
Q CNU183 R<br />
PS ou FS ou<br />
t t<br />
PS out18<br />
FS out18<br />
3<br />
3<br />
R<br />
Supported H matrix<br />
parameters<br />
r row degree=32<br />
c column degree =3<br />
Sc ciruclant size=61<br />
N=Sc*r=1952<br />
Flash Memory Summit 2013<br />
Santa Clara, CA 17