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B. P. Lathi, Zhi Ding - Modern Digital and Analog Communication Systems-Oxford University Press (2009)

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Figure 14. 1 1

Convolutional

encoder.

Data input

Coded sequence

Figure 14. 12

Code tree for the

encoder in

Fig. 14.11.

t

0

1

000

I

'

'

111

000

111

010

'

: n2

'

'

101

Input message

000 000 000 000 000 00000

111 010 011 011 000 00001

010 011 011 000 000 00010

101 001 000 011 000

011 011 000 000 000

100 001 011 011 000

001 000 011 000 000

110 010 000 011 000

011 000 000 000 000

100 010 011 011 000

001 011 011 000 000

110 001 000 011 000

000 011 000 000 000

111 001 011 011 000

010 000 011 000 000

101 010 000 011 000

000 000 000 000 000

111 010 011 011 000

010 011 011 000 000

101 001 000 011 000

011 011 000 000 000

100 001 011 011 000

001 000 011 000 000 10110

110 010 000 011 000

000 000 000 000

010 011 011 000

011 011 000 000

001 000 011 000

011 000 000 000

111 001 011 011 000 11101

010 000 011 000 000 11110

101 010 000 011 000 11111

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