Reference : Hybrid Beamforming for Terahertz Joint Ultra-Massive MIMO Radar-Communications
Scientific journals : Article
Engineering, computing & technology : Computer science
Security, Reliability and Trust
http://hdl.handle.net/10993/49226
Hybrid Beamforming for Terahertz Joint Ultra-Massive MIMO Radar-Communications
English
Elbir, Ahmet M. []
Mishra, Kumar Vjiay []
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Nov-2021
IEEE Journal of Selected Topics in Signal Processing
Institute of Electrical and Electronics Engineers
15
6
1468-1483
Yes (verified by ORBilu)
1932-4553
1941-0484
New York
NY
[en] In this paper, we investigate the hybrid beamforming problem in joint radar-communications at terahertz (THz) bands. In order to address the extremely high attenuation at THz, ultra-massive multiple-input multiple-output (UM-MIMO) antenna systems have been proposed for THz communications to compensate propagation losses. Further, we propose a new group-of-subarrays (GoSA) UM-MIMO structure to reduce the hardware cost. We formulate the GoSA beamformer design as an optimization problem to provide a trade-off between the unconstrained communications beamformers and the desired radar beamformers. Numerical experiments demonstrate that the proposed approach outperforms the conventional approaches in terms of spectral efficiency and hardware costs.
10.13039/100010663-ERC
Researchers
http://hdl.handle.net/10993/49226
10.1109/ISWCS49558.2021.9562238
https://www.techrxiv.org/articles/preprint/Hybrid_Beamforming_for_Terahertz_Joint_Ultra-Massive_MIMO_Radar-Communications/17694467

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