Title :
A 0.8V CMOS analog decoder for an (8,4,4) extended Hamming code
Author :
Nguyen, Nhan ; Winstead, Chris ; Gaudet, Vincent C. ; Schlegel, Christian
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
A soft decoding method for iterative error control codes is through the use of analog circuits. Analog decoders exploit the nonlinear behaviour of transistors operating in subthreshold to process probability information. This paper describes the design of an (8,4,4) extended Hamming decoder operating at supply voltage 0.8V using 0.18μm CMOS technology. When normalizers are biased at 1μA, a decoding rate of 444 kbps and energy per decoded bit of 0.64nJ/b is achieved.
Keywords :
CMOS analogue integrated circuits; Hamming codes; analogue processing circuits; graphs; iterative decoding; transistors; 0.18 micron; 0.8 V; 1 muA; CMOS technology; Hamming code; Hamming decoder; analog circuits; analog decoder; iterative error control codes; nonlinear behaviour; probability information processing; soft decoding method; transistors; Analog circuits; CMOS technology; Error correction; Floors; Iterative decoding; Iterative methods; Maximum likelihood decoding; Parity check codes; Probability distribution; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328395
