4 8 8

0	1	2	3
4	5	6	7
0	1	2	3
4	5	6	7
0	1	2	3
4	5	6	7
0	1	2	3
4	5	6	7


0	4	2	6
1	5	3	7
4	0	6	2
5	1	7	3
2	6	0	4
3	7	1	5
6	2	4	0
7	3	5	1



This is the rate 2/3 Ungerboeck code with 8-states for 8-PSK (natural mapping).
The states are defined in Ungerboeck's way. 

d_free^2 = 4.585 Es --> 6.6 dB (so gain of 3.6 dB over uncoded QPSK)

Parity check matrix in octal: [04 02 11] 

Generator Matrix:

[ 1	D	0
  D^2	1	D]

