Margin normalization and propagation in analog VLSI

Shantanu Chakrabartty, Gert Cauwenberghs

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


We propose a margin propagation algorithm as an alternate decoding method to usual probability propagation algorithm. The decoding based on margins depends only on basic additions and subtractions and thus can be easily implemented in analog VLSI in a manner that is is independent of the device characteristics. We present an analog VLSI implementation of the margin propagation network using CMOS transistors and provide experimental results obtained from a system fabricated in 0.5μ CMOS process. Preliminary results indicate that margin based decoding is robust to input noise and parameter mismatches and can provide superior performance as compared to usual probability propagation.

Original languageEnglish
Pages (from-to)I901-I904
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 2004
Event2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada
Duration: May 23 2004May 26 2004


Dive into the research topics of 'Margin normalization and propagation in analog VLSI'. Together they form a unique fingerprint.

Cite this