Results 261 to 270 of about 58,866 (304)

Reconfigurable Intelligent Surface (RIS) Assisted Wireless Coverage Extension: RIS Orientation and Location Optimization

IEEE Communications Letters, 2021
Shuhao Zeng, Hongliang Zhang, Boya Di
exaly  

Richardson-Zahl Ri (Richardson number Ri)

2000
Es handelt sich um eine dimensionslose Kennzahl im Sinne der Dimensionsanalysis, die im Zusammenhang mit der Wirkung von Auftriebskraften auftritt. Eine besondere Bedeutung hat sie zur Kennzeichnung der Auf-triebseffekte bei turbulenten Stromungen. Fur diesen Zweck werden spezielle Definitionen der Richardson-Zahl eingefuhrt.
openaire   +1 more source

Receive Quadrature Reflecting Modulation for RIS-Empowered Wireless Communications

IEEE Transactions on Vehicular Technology, 2021
Miaowen Wen, Qiang Li, Ertugrul Basar
exaly  

RIS-Aided Wireless Communications: Prototyping, Adaptive Beamforming, and Indoor/Outdoor Field Trials

IEEE Transactions on Communications, 2021
Xilong Pei, Haifan Yin, Li Tan
exaly  

Active 3D Double-RIS-Aided Multi-User Communications: Two-Timescale-Based Separate Channel Estimation via Bayesian Learning

IEEE Transactions on Communications, 2023
Songjie Yang, Wanting Lyu, Yue Xiu
exaly  

CSI acquisition in RIS-assisted mobile communication systems

National Science Review, 2023
Yu Han, Wankai Tang, Michail Matthaiou   +2 more
exaly  

Codebook design and beam training for extremely large-scale RIS: Far-field or near-field?

China Communications, 2022
Xiuhong Wei, Linglong Dai, Yajun Zhao
exaly  

Joint BS-RIS-User Association and Beamforming Design for RIS-Assisted Cellular Networks

IEEE Transactions on Vehicular Technology, 2023
Rang Liu
exaly  

Secure Communication in RIS-assisted MIMO systems: Active RIS or Passive RIS?

2023 International Conference on Wireless Communications and Signal Processing (WCSP), 2023
Jialin Zhou, Yu Zhang 0056, Xinyue Hu 0001, Tiancheng Yang, Lixia Yang, Xiongwen Zhao   +5 more
openaire   +1 more source

Power Scaling Law Analysis and Phase Shift Optimization of RIS-Aided Massive MIMO Systems With Statistical CSI

IEEE Transactions on Communications, 2022
Kangda Zhi, Cunhua Pan, Hong Ren
exaly