Joint Power Allocation and Beamforming in Amplify-and-Forward Relay Networks under Per-Node Power Constraint

Algorithm 2

Distributed joint power allocation and beamforming.

Control center side

() Performing Algorithm 1 to determine the weights and powers

() Optimize the dual problem in Eq. (20) using determined powers

() Calculate and transmit the common parameters , and

Relay side

() Calculate the weight using Eq. (17)

() If power constraints are violated

     should be computed using Eq. (18)

() else

     and calculated weight is correct.

() End if