Energy-Efficient Resource Allocation in Cognitive Wireless-Powered Hybrid Active-Passive Communications

Algorithm 1

Dinkelbach-based iterative algorithm for .

1: Initialize the maximum iterations and the maximum error tolerance ;

2: Set the maximum energy efficiency and iteration index ;

3: repeat

4: Solve with a given and obtain the optimal solution ;

5: if then

6:  ;

7:  Set , , , and return;

8: else

9:  Set , ;

10:  ;

11: end if

12: until or