Power Allocation for Reducing PAPR of Artificial-Noise-Aided Secure Communication System

Algorithm 3

Iterative algorithm for nonconvex constraint.

(1)	Initialize the iteration variable , , iteration step length , the maximum tolerance , and the iteration index ;
(2)	Repeat {Main Loop}
	Solve the problem (12) for a given and to obtain the kth PA matrix ;
(3)	;
(4)	, and
(5)	Until
(6)	Return (back to the step 3 in DC programming)