2024/01/22 by Gavras, Ioannis, Alexandropoulos, George C. · 1 citation
#Emerging Technologies (cs.ET) #FOS: Computer and information sciences #Information Theory (cs.IT)
paper · doi:10.48550/arxiv.2401.12036
In this paper, we present a simultaneous target tracking and multi-user communications system realized by a full duplex holographic Multiple-Input Multiple-Output (MIMO) node equipped with Dynamic Metasurface Antennas (DMAs) at both its communication ends. Focusing on the near-field regime, we extend Fresnel's approximation to metasurfaces and devise a subspace tracking scheme with DMA-based hybrid Analog and Digital (A/D) reception as well as hybrid A/D transmission with a DMA for sum-rate maximization. The presented simulation results corroborate the efficiency of the proposed framework for various system parameters.