Fairness Enhancement of UAV Systems with Hybrid Active-Passive RIS
We consider unmanned aerial vehicle (UAV)-enabled wireless systems where downlink communications between a multi-antenna UAV and multiple users are assisted by a […]
Blockage-Aware Reliable mmWave Access via Coordinated Multi-Point Connectivity
The fundamental challenge of the millimeter-wave (mmWave) frequency band is the sensitivity of the radio channel to blockages, which gives rise to […]
Energy-Efficient Resource Allocation for OFDMA Heterogeneous Networks
We proposed several energy-efficient resource allocation algorithms for the downlink of an orthogonal frequency-division-multiple-access (OFDMA) based femtocell heterogeneous networks (HetNets). Heterogeneous QoS […]
Energy-Efficient Multicell Multigroup Multicasting With Joint Beamforming and Antenna Selection
This paper studies the energy efficiency and sum rate tradeoff for coordinated beamforming in multicell multiuser multigroup multicast multiple-input single-output systems. We […]
Energy-efficient transmission strategies for CoMP downlink—overview, extension, and numerical comparison
This paper focuses on energy-efficient coordinated multi-point (CoMP) downlink in multi-antenna multi-cell wireless communications systems. We provide an overview of transmit beamforming […]
Energy Efficiency Maximization for C-RANs
We study downlink of multiantenna cloud radio access networks with finite-capacity fronthaul links. The aim is to propose joint designs of beamforming […]