254 天前 - … where the UAVs are part of a swarm and communicate with … time-frequency space
(OTFS) modulated signals. Each receiving UAV estimates the multipath wireless channel on …

255 天前 - … , wide coverage and dynamically changing channels of LEO satellites, this study …
unmanned aerial vehicle (UAV)’s ideal altitude. By maximizing the position of a single UAV…

256 天前 - … UAVs cooperate in an uncoordinated manner, thanks to the randomness of the
generated virtual channels, … of virtual channels with the distributed randomized space time block …

256 天前 - … After concatenating the feature space, we adopt a shuffle operation to create the
channel … Therefore, to provide a more efficient UAV detector, we design a local sliding window …

262 天前 - … However, the broadcast and line-of-sight (LoS) channels in UAV communications
create opportunities for malicious eavesdroppers to intercept the offloaded information from …

269 天前 - … In this paper, we consider the impact of the UAV pitch and roll wobbles and the
effective … channel statistical characteristics, and propose a novel AIRS-assisted beam channel …

270 天前 - … space-time CF and Doppler PSD, which can effectively characterize the channel
nonstationarity caused by dynamic motion including UAV rotation and arbitrary trajectories. …

271 天前 - … in unmanned aerial vehicles (UAVs) [8] and for beaming solar power to Earth from
Space … 3) Channel model: The channel model considers the presence of the LOS component …

281 天前 - … the channel … channel with variable turbulence intensity. In this paper, an improved
ACM scheme with hybrid switching standard is proposed for UAV-to-Ground FSO channels to …

282 天前 - … between the UAV and the devices, and the channel can be considered as a line-…
-sight channel. According to [13], the channel gain between UAV U and device i at time …