Weighted Sum Secrecy Rate Optimization for Cooperative Double-IRS-Assisted Multiuser Network

Algorithm 2

The ADMM algorithm for problem (22).

1: Initialization:, set the accuracy , set initial points and the maximum iteration number ;

2: Set penalty factor where is the minimum integer satisfying ;

3: Repeat

4: Obtain according to Equation (29);

5: Obtain according to Equation (32);

6: Obtain according to Equation (34);

7: Until or ;

8: Output.