Enhanced Secure SWIPT in Heterogeneous Network via Intelligent Reflecting Surface

Algorithm 1

SCA-based iterative algorithm for solving problem (19).

	Initialization: set and initialize feasible solutions to problem (19).
(1)	Repeat: n;  = n + 1;
(2)	Solve the convex problem (19) with and the optimal values are denoted by ;
(3)	Updata
(4)	Until: convergence