TY - GEN
T1 - On the Jamming Rejection Features of Near-field Beamforming
AU - Ferreira, João
AU - Guerreiro, João
AU - Dinis, Rui
AU - Da Silva, Mário Marques
N1 - Funding Information:
1This work is supported by Fundação para a Ciência e a Tecnologia (FCT) and Instituto de Telecomunicações (IT) under projects CELL-LESS6G 2022.08786.PTDC and UIDB/50008/2020.
Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Large multiple antenna systems have been widely used in 5G for improved spectral efficiencies. For 6G, even bigger arrays are being proposed to obtain larger gains and/or to reduce interference levels. When the physical size of the array is large compared to the propagation distance, communication might occur in the near-field regime, which requires channel models that capture the curvature of the spherical waves. In this paper, we consider the near-field communication regime and study the jamming rejection features of an extremely large array (ELAA). Due to the focusing effect available in the near-field, it is shown that the jamming rejection features in this region are much stronger than the ones associated with far-field. Therefore, near-field beam-focusing constitutes an interesting physical layer security (PLS) technique for 6G communications.
AB - Large multiple antenna systems have been widely used in 5G for improved spectral efficiencies. For 6G, even bigger arrays are being proposed to obtain larger gains and/or to reduce interference levels. When the physical size of the array is large compared to the propagation distance, communication might occur in the near-field regime, which requires channel models that capture the curvature of the spherical waves. In this paper, we consider the near-field communication regime and study the jamming rejection features of an extremely large array (ELAA). Due to the focusing effect available in the near-field, it is shown that the jamming rejection features in this region are much stronger than the ones associated with far-field. Therefore, near-field beam-focusing constitutes an interesting physical layer security (PLS) technique for 6G communications.
KW - achievable capacity
KW - extremely large antenna arrays (ELAAs)
KW - multiple-input multiple-output (MIMO)
KW - near-field communications
KW - physical layer security (PLS)
UR - http://www.scopus.com/inward/record.url?scp=85169829687&partnerID=8YFLogxK
U2 - 10.1109/VTC2023-Spring57618.2023.10199768
DO - 10.1109/VTC2023-Spring57618.2023.10199768
M3 - Conference contribution
AN - SCOPUS:85169829687
SN - 979-8-3503-1115-0
T3 - IEEE Conference on Vehicular Technology (VTC)
BT - 2023 IEEE 97th Vehicular Technology Conference, VTC 2023-Spring
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Massachusetts
T2 - 97th IEEE Vehicular Technology Conference, VTC 2023-Spring
Y2 - 20 June 2023 through 23 June 2023
ER -