tut7 - (d) If a received sequence is 11 10 10 10, determine...

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EE4212 Information and Coding Tutorial 7 Convolutional Codes For a convolution code with K =3, code rate=1/2, the connection polynomials are g 1 ( X ) = 1 + X + X 2 , g 2 ( X ) = 1 + X (a) Draw the schematic diagram (i.e., the pictorial representation) of the encoder. (b) Draw the state, tree and trellis diagrams for this code. (c) Find the coding sequence for the message sequence 0 1 1 0 0.
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Unformatted text preview: (d) If a received sequence is 11 10 10 10, determine whether it is a correct sequence. If not, try to decode it by a feedback decoder with look-ahead length 3. (e) Find the free distance of this code using (i) state diagram and (ii) trellis diagram. Hence, determine its error-correcting capability....
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