homework EE
Consider a (, , ) nonsystematic convolutional code (NSC) with code rate = = 1 2 ,
in which
Generator sequence: . = [1 0 1 1], 2 = [1 1 0 1]
Compact form: . = [., 2]
(1) Convert it into a RSC encoder: 2 = [1, 2/.]
(2) What is the constraint length of the code?
(3) Draw a hardware realization of the RSC encoder.
(4) Determine the state table of the RSC encoder
(5) Draw the state diagram of the RSC encoder
Label the branches of the state diagram with input/output values.
(6) Incorporate 2 in the following turbo encoder with interleaver
= {5, 4, 8, 1, 9, 7, 3, 0, 2, 6}
For the input sequence = (1,1,0,1,0,0,1,1,0,1), assume the encoder starts from state 0.
(7) Find the codeword bit stream if the encoded bits are not punctured.
(8) Find the codeword bit stream if the encoded bits are punctured with = A0 1
1 0
B.
