The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2026
Filed:
Oct. 27, 2025
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Ali Arshad Nasir, Dhahran, SA;
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;
Abstract
A method for maximizing a minimum secure energy efficiency (EE) in a simultaneous transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS)-assisted near-field orthogonal frequency division multiplexing (OFDM)-based wideband terahertz (THz) communication system. The system includes an M-antenna base station (BS) employing a true time delay (TTD)-based hybrid beamforming structure, a STAR-RIS with N reflective elements arranged in a uniform planar array (UPA), U single-antenna user equipment (UEs), and E single-antenna eavesdroppers (EVs), with UEs and EVs positioned on reflection and transmission sides of the STAR-RIS, respectively. The method includes maximizing the minimum secure EE subject to constraints on total transmit power, unit-modulus analog beamforming, STAR-RIS energy conservation, and TTD time-delay limits. The method further includes controlling the BS, digital baseband processing, each RF chain, each TTD, each phase shifter (PS), the STAR-RIS, and circuitry of each UE to operate in accordance with the maximized minimum secure EE.
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