Abstract: Unmanned aerial vehicles (UAVs) could acquire strong line-of-sight (LoS) channels for terrestrial nodes, which means UAV communications are more vulnerable to jammers and eavesdroppers.
Being active means engaging in productive, purposeful activities while maintaining availability for what matters. Unlike busyness, which creates unavailability, being active involves effective time ...
Abstract: Simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) offers a promising solution to conquer the challenge of severe signal attenuation through buildings ...