Search Results - ali+demir

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System and Method for Adaptive OFDM Guard Bands

Competitive Advantages Enhanced flexibility Optimization of available spectral resources Cross-layer optimized design Summary USF inventors have created adaptive guards for OFDM systems which support a variety of services operating asynchronously under the same network. The guards in both time and frequency domains are optimized with respect...

Published: 6/1/2023 | Inventor(s): Ali Demir, Huseyin Arslan

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Category(s): Technology Classifications > Electronics > Electronics Telecommunications, Technology Classifications > Electronics

Physical Layer Security for Wireless Implantable Medical Devices

A critical issue for IMD applications is authentication with wireless communications, since the current state of the technology provides pathways for an adversary to wirelessly change various IMD parameters and cause dangerous mistreatment of a patient. USF inventors have developed a defense mechanism that introduces a physical layer (PHY) authentication...

Published: 8/25/2023 | Inventor(s): Ali Demir, Huseyin Arslan, Richard Gitlin, Zekeriyya Ankarali

Keywords(s): Authentication and Biometric Systems, Telecommunication / Wireless Communication

Category(s): Technology Classifications > Medical > Medical Devices, Technology Classifications > Medical

PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids

The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...

Published: 7/30/2024 | Inventor(s): Payman Dehghanian, Shiyuan Wang, Li Li

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Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment

Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers

Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources

All-Fiber Multicore Fiber Laser Devices

Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources