Title :
Analog decoding of product codes
Author :
Winstead, Chris ; Dai, Jie ; Yu, Shuhuan ; Harrison, Reid ; Myers, Chris ; Schlegel, Christian
Author_Institution :
Utah Univ., Salt Lake City, UT, USA
Abstract :
A method is presented for analog soft-decision decoding of block product codes (block turbo codes). Extrinsic information is exchanged as analog signals between component row and column decoders. The component MAP decoders use low-power analog computation in subthreshold CMOS circuits to implement the sum-product algorithm. An example decoder design is presented for a (16, 11)2 Hamming code.
Keywords :
CMOS analogue integrated circuits; Hamming codes; block codes; maximum likelihood decoding; product codes; turbo codes; Hamming code; analog circuits; analog signals; analog soft-decision decoding; block product codes; block turbo codes; component MAP decoders; component column decoders; component row decoders; decoder design; low-power analog computation; subthreshold CMOS circuits; sum-product algorithm; Analog circuits; Block codes; Circuit simulation; Information theory; Iterative algorithms; Iterative decoding; Parity check codes; Product codes; Sum product algorithm; Turbo codes;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023502
