Power Optimization of IRS-Assisted D2D System Based on Imperfect Channel

Algorithm 2

Alternately optimize algorithm for tackling .

1:Input: Initial value 0, and predefined threshold .

2:Output .

3: for do

4: For given t, solve the problem Via CVX tool to

get .

5: For given , solve the problem Via Algorithm 1 to

get t+1.

6: if

7: then

8:  .

9: break

10: end