Firstly, for the scenario where the point beam was enabled at the satellite to serve the earth station, and the IRS and non-orthogonal multiple access (NOMA) were deployed at the base station to expand the communication range and serve multiple users, respectively, under the condition that ...
Beam concentrator was used in this mode to generate higher laser power for single molecule blinking. Images were captured with a liquid-cooled Photometrics Evolve EM-CCD camera for each channel. Exposure time 20 ms, laser power and camera EM gain were all adjusted to achieve maximum photo ...
Hybrid TOA-Based MIMO and DOA-Based Beamforming for Location and Positioning in WiMAX Networks It has been shown that time of arrival (TOA)-based location can be used as a baseline location estimation technique, with additional DOA measurements being used to further improve accuracy.doi:Awang Md...
The post-launch degradation of the visible channel (≈0.67-0.71 m) of the High Resolution Infrared Radiation Sounder (HIRS) flown on the NOAA14 spacecraft has been determined, using a south-eastern Libyan desert site (21-23° N, 28-29° E) as a radiometrically stable calibration target. ...
sensors Article IRS-Enabled Ultra-Low-Power Wireless Sensor Networks: Scheduling and Transmission Schemes Hibatallah Alwazani and Anas Chaaban ∗ School of Engineering, University of British Columbia, Kelowna, BC V1V1V7, Canada * Correspondence: anas.chaaban@ubc.ca Citation: Alwazani, H.; ...
In order to maximize the system average achievable secrecy capacity and ensure the power constraints of the UAV and active IRS, user scheduling, UAV trajectory, beamforming vector, and reflection matrix are jointly optimized, and the block coordinate descent (BCD) algorithm is applied to solve ...
In order to maximize the system average achievable secrecy capacity and ensure the power constraints of the UAV and active IRS, user scheduling, UAV trajectory, beamforming vector, and reflection matrix are jointly optimized, and the block coordinate descent (BCD) algorithm is applied to solve ...
By optimizing the energy transfer beamforming vector and the reflecting coefficients of the IRS, the RF signal attenuation of long-distance can be compensated; thus, the efficiency of the RF-enabled wireless energy transfer can be increased. In [14], an IRS-assisted SWIPT system was considered,...
Ref. [1] proposed a novel protocol that enabled the system to adaptively select the appropriate operating mode among energy harvesting mode, IRS auxiliary task offloading mode, and IRS standby task offloading mode based on the channel state information (CSI), IRS battery energy state, and user ...
Park, H.; Nguyen, T.H.; Park, L. Federated Deep Learning for RIS-assisted UAV-enabled Wireless Communications. In Proceedings of the 2022 13th International Conference on Information and Communication Technology Convergence (ICTC), Jeju Island, Republic of Korea, 19–21 October 2022; pp. 831–...