tailieunhanh - Modulation and coding course- lecture 12

How the decoding is performed for Convolutional codes? -What is a Maximum likelihood decoder? -What are the soft decisions and hard decisions? -How does the Viterbi algorithm work? | Digital Communications I Modulation and Coding Course B------ ------- -------B Period 3 - 2007 Catharina Logothetis Lecture 12 Last time we talked about How the decoding is performed for Convolutional codes What is a Maximum likelihood decoder What are the soft decisions and hard decisions How does the Viterbi algorithm work Lecture 12 2 Trellis of an example 1 2 Conv. code Input bits _Tailbiïs 1 0 1 0 0 Output bits Lecture 12

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