Table 2 Proposed simplified algorithm for solving problem (9)

1

Initialize B _k ,∀k, satisfying the constraints (29c).

2

Repeat

(a) Update D _k ,∀k, as in (23).

(b) Update B _k ,∀k, through solving the subproblem (29).

3

Until convergence.

4

Solve the subproblem (31) to obtain Q.