Draw the state diagram for the rate 2/3, K = 2, convolutional code indicated in Problem 8.15, part 3, and, for each transition, show the output sequence and the distance of the output sequence from the all-zero sequence.
Use Tables 8.3–1 to 8.3–11 to sketch the convolutional encoders for the following codes:
1. Rate 1/2, K = 5, maximum free distance code
2. Rate 1/3, K = 5, maximum free distance code
3. Rate 2/3, K = 2, maximum free distance code