Optimal Improper Gaussian Signaling for Physical Layer Security in Cognitive Radio Networks

Algorithm 1

Genetic algorithm.

1:  

2:  create a random initial population of size

3:  set current population equal to

4:  repeat

5:   evaluate each member of according to its fitness value

6:   assign a rank to each member of based on its fitness

7:   compute the expectation of each member of based on its rank

8:   if    then

9:    

10:  else

11:   

12:  end if

13:  select parent individuals

14:  create crossover children from the parents

15:  create mutation children from the parents

16:  select elite individuals

17:  replace the current population

18:  

19: until the maximum number of generations is reached