Turbo code internal internaleaver
The bits input to the turbo code internal internaleaver
are denoed by C0, C1, … ,Ck-1
Where K is the number of input bits
The bits output from the turbo code internal internaleaver
are denoed by C'0, C'1, … ,C'k-1
The relationship between the input and output bits is as follows
C'i=Cn(i) , i= 0,1,2,…,(K-1)
Where the relationship between the output index i and the input index n(i)
satisfies the following quadraic form n(i)=(f1*i+f2*i^2)mod K
the parameter f1 and f2 depend on the block size K
and are summarized in 以下的表
i Ki f1 f2
1 40 3 10
2 48 7 12
3 56 19 42
4 64 7 16
5 72 7 18
6 80 11 20
. . . .
. . . .
. . . .
想要請問的是
n(i)=(f1*i+f2*i^2)mod K
是怎樣根據表算出來的
還是說我給的條件根本不足
抑或是說 這個表示做實驗出來的???
拜託大大了^^
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