Sub-terahertz near field channel measurements and analysis with beamforming and Bessel beams.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
24 Aug 2024
24 Aug 2024
Historique:
received:
01
03
2024
accepted:
16
08
2024
medline:
26
8
2024
pubmed:
26
8
2024
entrez:
24
8
2024
Statut:
epublish
Résumé
Sub-terahertz communications (100-300 GHz) are explored today as a candidate technology to enable extremely high-rate, low-latency data services and high-resolution sensing in beyond-fifth-generation (beyond-5G) wireless networks. However, these sub-terahertz wireless systems will often have to operate in the near field, where the signal propagation does not follow canonical far-field models, including the commonly used free space path loss equation. Instead, the signal propagation in the near field follows more complex patterns that are not well-captured with analytical far-field models standardized for 5G research. Moreover, state-of-the-art beamforming solutions exploited heavily in fourth-generation (4G) and 5G networks are notably less efficient in the near field. In this article, the near-field sub-terahertz channel is accurately measured and analyzed. In addition to state-of-the-art beamforming, the article also analyzes the sub-terahertz channel measurements when using near-field-specific Bessel beams that demonstrate fewer power fluctuations in the near field in addition to higher focusing gain. Novel distance-centric and angle-centric dependencies reported in this article may serve as a reference when developing next-generation channel models for sixth-generation (6G) and beyond-6G near-field sub-terahertz wireless systems.
Identifiants
pubmed: 39181955
doi: 10.1038/s41598-024-70542-z
pii: 10.1038/s41598-024-70542-z
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
19675Subventions
Organisme : National Science Foundation (NSF)
ID : CNS-2225590
Organisme : National Science Foundation (NSF)
ID : CNS-2011411
Organisme : United States Department of Defense | United States Air Force | AFMC | Air Force Office of Scientific Research (AF Office of Scientific Research)
ID : FA9550-23-1-0254
Organisme : United States Department of Defense | United States Air Force | AFMC | Air Force Office of Scientific Research (AF Office of Scientific Research)
ID : CNS-2011411
Organisme : United States Department of Defense | United States Air Force | AFMC | Air Force Office of Scientific Research (AF Office of Scientific Research)
ID : CNS-2011411
Organisme : National Science Foundation (NSF)
ID : CNS-2011411
Informations de copyright
© 2024. The Author(s).
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