Robust Cooperative Beamforming and Its Feasibility Analysis in Multiuser Multirelay Networks
Hoods In this paper, we study the optimal cooperative beamforming problem in the amplify-and-forward (AF) multi-user and multi-relay networks, which face the challenges of rapid node number variations and per-node power limits.To achieve extra diversity gain, direct-link (source-to-destination) and distributed relay-link signals are jointly exploit