Description: set up the trellis given code generator g
g given in binary matrix form. e.g. g = [ 1 1 1 1 0 1 ]
next_out(i,1:2): trellis next_out (systematic bit parity bit) when input = 0, state = i next_out(i,j) = -1 or 1
next_out(i,3:4): trellis next_out (systematic bit parity bit) when input = 1, state = i
next_state(i,1): next state when input = 0, state = i next_state(i,i) = 1,...2^m
next_state(i,2): next state when input = 1, state = i
last_out(i,1:2): trellis last_out (systematic bit parity bit) when input = 0, state = i last_out(i,j) = -1 or 1
last_out(i,3:4): trellis last_out (systematic bit parity bit) when input = 1, state = i
last_state(i,1): previous state that comes to state i when info. bit = 0
last_state(i,2): previous state that comes to state i when info. bit = 1
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trellis.m
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