Extremum seeking control for beam steering using hypersurfaces
Visualitza/Obre
10.1109/ICCWorkshops49005.2020.9145206
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/340431
Tipus de documentText en actes de congrés
Data publicació2020
EditorInstitute of Electrical and Electronics Engineers (IEEE)
Condicions d'accésAccés obert
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Abstract
Hypersurface, a software defined metasurface (SDM) paradigm constitutes a revolutionary technology aiming at offering programmatic control over all aspects of a propagating wave, altering its direction, power, polarization and phase. In the absence of line of sight (LOS) between a transmitter and a receiver, HSF can provide seamless connectivity via programmatic reflection. However, such an application requires fine tuning of the metasurface reconfiguration parameters, which may not be effective when done in an open loop fashion due to model uncertainties. In this work, we consider a feedback-based formulation of the problem, which involves maximization of the received power and propose the use of Extremum Seeking Control (ESC) for the controller implementation due to fact that it is model-free and adheres to the maximization problem. Extensive simulations indicate that the proposed scheme is successful in guiding the impinging wave to the receiver within reasonable time even in the presence of time varying delays incurred by message propagation. In addition, a discrete time implementation is considered, investigating its limitations as we increase the sampling time while also characterizing the traffic within the controller network.
CitacióAshraf, N. [et al.]. Extremum seeking control for beam steering using hypersurfaces. A: IEEE International Conference on Communications. "2020 IEEE International Conference on Communications Workshops (ICC): Dublin, Ireland, 7–11 June 2020: proceedings". Institute of Electrical and Electronics Engineers (IEEE), 2020, p. 1-6. ISBN 978-1-7281-7440-2. DOI 10.1109/ICCWorkshops49005.2020.9145206.
ISBN978-1-7281-7440-2
Versió de l'editorhttps://ieeexplore.ieee.org/document/9145206
Fitxers | Descripció | Mida | Format | Visualitza |
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ExtremumSeeking_ICC2020.pdf | Postprint - Article principal | 3,487Mb | Visualitza/Obre |