Focusing on the problem of large channel estimation transmission overhead in Intelligent Reflective Surface IRS) assisted multi-user communication system in high Doppler scenario, an IRS-OTFS communication system is constructed based on the characteristics of Orthogonal Time-Frequency Space (OTFS) modulatio...
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. ...
mm focusing lens and 400 mm collimating lens (Thorlabs) was used to expand the beam 4 times to give sufficient power to send most of the molecules to the OFF state. A mirror placed in between these two lenses was conjugated to the back focal plane of the objective lens to provide ...
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 ...
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. 831–833. [Google Scholar] [CrossRef] Guo,...
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 ...