6 papers
Experiment of Multi-UAV Full-Duplex System Equipped with Directional Antennas
Tao Yu, Kento Kajiwara, Kiyomichi Araki +1
One of the key enablers for the realization of a variety of unmanned aerial vehicle (UAV)-based systems is the high-performance communication system linking many UAVs and ground st…
Spectrum Sharing between Directional-Antenna- Equipped UAV System and Terrestrial Systems
Tao Yu, Kento Kajiwara, Kiyomichi Araki +1
Unmanned aerial vehicles (UAVs)-based applications, such as surveillance systems and wireless relays, are attracting increasing attention from academia and industrial fields. The h…
Full-Duplex Aerial Communication System for Multiple UAVs with Directional Antennas
Tao Yu, Kiyomichi Araki, Kei Sakaguchi
UAV-based wireless systems, such as wireless relay and remote sensing, have attracted great attentions from academia and industry. To realize them, a high-performance wireless aeri…
Ground Experiment of Full-Duplex Multi-UAV System Enabled by Directional Antennas
Tao Yu, Kiyomichi Araki, Kei Sakaguchi
A high performance multi-UAV communication system, which bridges multiple UAVs and ground station, is one of the key enablers to realize a variety of UAV-based systems. To address…
A Study on Optimal Beam Patterns for Single User Massive MIMO Transmissions
Maki Arai, Kei Sakaguchi, Kiyomichi Araki
This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Output) transmission systems. For hybrid beamforming in SU mass…
Optimal Design Method of MIMO Antenna Directivities and Corresponding Current Distributions by Using Spherical Mode Expansion
Maki Arai, Masashi Iwabuchi, Kei Sakaguchi +1
This paper proposes a new methodology to design optimal antennas for MIMO (Multi-Input Multi-Output) communication systems by using spherical mode expansion. Given spatial channel…