Data width requirements in SISO decoding with module normalization.

Data width requirements in SISO decoding with module normalization.

This letter studies the numerical properties of log-MAP-based soft-input soft-output decoding. The ranges of the differences between the path metrics, the soft output, and the complete information are derived. Since the log-MAP algorithm is functionally dependent only upon the differences between pa...

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Bibliographic Details
Published in:IEEE Transactions on communications 49, 11 (2001).
Main Author: Yufei Wu
Format: Article
Language:English
Subjects:
3G mobile communication systems.
SISO decoding.
Data width requirements.
Fixed point decoder.
Log-MAP-based soft-input soft-output decoding.
Minimum internal data width.
Module normalization.
Path metrics.
Third-generation mobile communication.
Turbo code.