4.6 Article

Terahertz Wireless Communications: Co-Sharing for Terrestrial and Satellite Systems Above 100 GHz

Journal

IEEE COMMUNICATIONS LETTERS
Volume 25, Issue 10, Pages 3156-3160

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2021.3088270

Keywords

Attenuation; Satellite broadcasting; Satellites; Rain; Absorption; Atmospheric modeling; Wireless communication; Mmwave; terahertz; spectrum sharing and coexistence; satellite; OOBE; interference mitigation

Funding

  1. NYU WIRELESS Industrial Affiliates Program
  2. NSF [1909206, 2037845]

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The letter demonstrates how spectrum up to 1 THz will support mobile communications beyond 5G in the coming decades. The measurements at 140 GHz show the natural isolation between terrestrial networks and surrogate satellite systems, suggesting minimal interference at frequencies above 100 GHz with proper radiation control.
This letter demonstrates how spectrum up to 1 THz will support mobile communications beyond 5G in the coming decades. Results of rooftop surrogate satellite/tower base station measurements at 140 GHz show the natural isolation between terrestrial networks and surrogate satellite systems, as well as between terrestrial mobile users and co-channel fixed backhaul links. These first-of-their-kind measurements and accompanying analysis show that by keeping the energy radiated by terrestrial emitters on the horizon (e.g., elevation angles <= 15 degrees), there will not likely be interference in the same or adjacent bands between passive satellite sensors and terrestrial terminals, or between mobile links and terrestrial backhaul links at frequencies above 100 GHz.

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