MAP algorithms for decoding linear block codes based on sectionalized trellis diagrams.

The maximum a posterioriprobability (MAP) algorithm is a trellis-based MAP decoding algorithm. It is the heart of turbo (or iterative) decoding that achieves an error performance near the Shannon limit. Unfortunately, the implementation of this algorithm requires large computation and storage. Furth...

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Vydáno v:	IEEE Transactions on communications 48, 4 (2000).
Hlavní autor:	Ye Liu
Médium:	Článek
Jazyk:	English
Témata:	Shannon limit. Backward recursions. Bidirectional MAP decoding. Decoding algorithm. Decoding complexity reduction. Decoding delay reduction. Error performance. Forward recursions. Linear block codes decoding. Log-MAP algorithm. Max-log-MAP algorithm. Maximum a posteriori probability. Parallel MAP decoding. Sectionalized trellis diagrams. Structural properties. Trellis-based MAP decoding algorithm. Turbo iterative decoding. Two-stage decoding.