From: Vector perturbation based adaptive distributed precoding scheme with limited feedback for CoMP systems
Scheme
Feedback information
Feedback bits
MBSFN
One PMI for K BSs
C
WLP
One PMI for each BSs
One phase facor for coordinated BSs
C + (C + 1) × (K - 1)
ADP
One PMI for serving BSs
One adjustment factor for coordinated BSs
C + 2 × (K - 1)