Dynamic Power Splitting Strategy for SWIPT Based Two-Way Multiplicative AF Relay Networks with Nonlinear Energy Harvesting Model

Algorithm 1

The proposed iterative method.

: Initialize:

the maximum number of iterations , the iteration index , ;

: Set:

, , , and input the instantaneous CSI, ;

: repeat

: Solve the maximize optimization problem in (19) with

and obtain ;

: Apply into , , , , to calculate , , , , ;

: Update ;

: If , then ;

: until   or ;

: Obtain the maximum SNR , and the optimal PS ratio .