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An analog 0.25 /spl mu/m BiCMOS tailbiting MAP decoder

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4 Author(s)
Moerz, M. ; Bell Lab., Lucent Technol., Murray Hill, NJ, USA ; Gabara, T. ; Yan, R. ; Hagenauer, J.

Digital decoders play a fundamental role in extracting signals from a noisy background. Mixed-signal decoders are recently employed in applications to capture the potential of smaller size, higher speed or lower power consumption when compared to an equivalent digital implementation. Developing an all-analog decoder can further improve on these parameters. Furthermore, decoders for tailbiting convolutional codes and concatenated coding schemes (e.g., turbo codes) incorporate a closed loop which allows the development of a highly-parallel analog network. The authors describe an implementation of such an analog decoder using a 0.25 /spl mu/m BiCMOS process.

Published in:

Solid-State Circuits Conference, 2000. Digest of Technical Papers. ISSCC. 2000 IEEE International

Date of Conference:

9-9 Feb. 2000