Title :
CMOS implementation of all-analogue APP decoders: analysis of performances and limitations
Author :
Xotta, A. ; Gerosa, A. ; Neviani, A.
Author_Institution :
Dipt. di Elettronica e Inf., Padova Univ., Italy
fDate :
12/6/2001 12:00:00 AM
Abstract :
The potential performances and limitations of an all-analogue implementation of a posteriori-probability (APP) decoders in a standard complementary-metal-oxide semiconductor (CMOS) technology are investigated. In particular, the accuracy and speed trade-off related to the usage of MOS transistors in the weak inversion (w.i) region is analysed in depth. Transistor level simulations of a (18, 9, 5) tail-biting decoder are reported and contrasted with the results of the software implementation of the same decoding algorithm
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; decoding; CMOS all-analogue APP decoder; MOS transistor; a posteriori-probability decoding algorithm; tail-biting decoder; weak inversion region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20011025
