,

Energy Efficiency Optimization with Non-linear Precoding in Multi-cell MISO Broadcast Channels

,

Simple Energy Efficiency Maximization Methods for MU-MISO Systems based on Saturation Power

,

Sum Rate Maximizing in a Multi-user MIMO System with SWIPT

,

Downlink Vertical Beamforming Designs for Multi-User MISO Systems

,

Robust Beamforming and Power Splitting Design in Distributed Antenna System with SWIPT under Bounded Channel Uncertainty