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eess.SP2020
Two-Hop Multi-UAV Relay Network Optimization with Directional Antennas
Carles Diaz Vilor, Hamid Jafarkhani
In this paper, we consider the multi-UAV deployment problem for a two-hop relaying system. For a better network performance, UAVs carry directional antennas that are modeled by a r…
eess.SP2017★ 1 cited
Asynchronous Channel Training in Multi-Cell Massive MIMO
Xun Zou, Hamid Jafarkhani
Pilot contamination has been regarded as the main bottleneck in time division duplexing (TDD) multi-cell massive multiple-input multiple-output (MIMO) systems. The pilot contaminat…
eess.SP2017★ 8 cited
Reconfigurable Antennas in mmWave MIMO Systems
Mojtaba Ahmadi Almasi, Hani Mehrpouyan, Vida Vakilian +2
The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band. One approach t…