DocumentCode
3619168
Title
500 Mb/s soft output Viterbi decoder
Author
Engling Yeo;S. Augsburger;Wm.R. Davis;B. Nikolic
Author_Institution
University of California, Berkeley, CA
fYear
2002
fDate
6/24/1905 12:00:00 AM
Firstpage
523
Lastpage
526
Abstract
Two 8-state, 7-bit soft output Viterbi decoders matched to an EPR4 channel and a rate-8/9 convolutional code are implemented in 0.18µm CMOS technology. Architectural transformation of the add-compare-select structures and modification of the register exchange allow a high throughput with small area overhead. The 4mm2chip has been verified to decode at 500Mb/s with 1.8V supply. These decoders are used with Turbo codes, which have been demonstrated to achieve information rates very close to the Shannon limit.
Keywords
"Viterbi algorithm","Convolutional codes","Throughput","CMOS technology","Registers","Turbo codes","Iterative decoding","Computer architecture","Impedance matching","Information rates"
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2002. ESSCIRC 2002. Proceedings of the 28th European
Type
conf
Filename
1471580
Link To Document