Design of Improved BP Decoders and Corresponding LT Code Degree Distribution for AWGN Channels

Algorithm 3.

Pseudocode of calculating threshold

Input: Probability

Output: Threshold t

1: initialize an ordered array S

2: initialize n=0

3: whilei<Mdo

4:  generate a packet p and add to S

5:  ifp is error then

6:    n=n+1

7:   end if

8:  i++9: end while

10: 

11: i=M

12: whiledo

13:  p=S[i]

14:  ifp is error then

15:   e=e – 1

16:  end if

17:  ife<= 0 do

18:   t =

19:   break

20:  end if

21:  i--

22: end while

23: returnt

Algorithm 3.