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Chapter: Digital Communication - Error Control Coding

Vitterbi Decoding Algorithm

An efficient search algorithm, Performing ML decoding rule.

Vitterbi Decoding Algorithm

 

·              An efficient search algorithm

·              Performing ML decoding rule.

·              Reducing the computational complexity.

 

Basic concept


·              Generate the code trellis at the decoder

 

·              The decoder penetrates through the code trellis level by level in search for the transmitted code sequence

 

·              At each level of the trellis, the decoder computes and compares the metrics of all the partial paths entering a node

 

·              The decoder stores the partial path with the larger metric and eliminates all the other partial paths. The stored partial path is called the survivor.

 

 




 


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Digital Communication - Error Control Coding : Vitterbi Decoding Algorithm |


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