Habib Ullah, Muhammad (2023) Visible light backscattering techniques for IoT healthcare applications. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Visible light backscattering techniques for IoT healthcare applications |
| Autori: | Autore Email Habib Ullah, Muhammad muhammad.habibullah@unina.it |
| Data: | 8 Marzo 2023 |
| Numero di pagine: | 101 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Ingegneria Elettrica e delle Tecnologie dell'Informazione |
| Dottorato: | Information and Communication Technology for Health |
| Ciclo di dottorato: | 35 |
| Coordinatore del Corso di dottorato: | nome email RICCIO, Daniele daniele.riccio@unina.it |
| Tutor: | nome email GELLI, Giacinto [non definito] |
| Data: | 8 Marzo 2023 |
| Numero di pagine: | 101 |
| Parole chiave: | Visible Light Backscattering, Internet of Things, Healthcare, Body Area Networks |
| Settori scientifico-disciplinari del MIUR: | Area 09 - Ingegneria industriale e dell'informazione > ING-INF/03 - Telecomunicazioni |
| Depositato il: | 14 Apr 2023 07:57 |
| Ultima modifica: | 10 Apr 2025 14:07 |
| URI: | http://www.fedoa.unina.it/id/eprint/15173 |
Abstract
Rapid advances in the field of information and communication technology (ICT) are replacing traditional healthcare systems with electronic health (e-Health) ones. Many e-Health applications involve the use of sensors of different nature, aimed at collecting physiological parameters of the patients and transmitting them in real-time to a collection units. Radio-frequency (RF) technologies are frequently employed to this aim, notwithstanding their drawbacks, such as long-term exposure to RF fields, which might be a source of health risks and electromagnetic interference (EMI) to medical equipment, as well as security of privacy concerns, due to RF propagation behind walls and obstacles. Moreover, because of spectrum shortage, RF technologies exhibit serious scalability issues to support the massive number of connections required by the Internet of Things (IoT) vision. Visible light backscattering (or backscatter) (VLB) is an innovative optical transmission paradigm aimed at enabling ultra low-power passive communication and localization for IoT, which overcomes some of the known limitations of conventional (i.e., active) visible light communication (VLC), as well as those of active/passive RF technologies. Indeed, VLB can be considered as an evolution of VLC, which leverage the diffusion of light emitting diodes (LEDs) to jointly provide illumination and communication to multiple tags, using visible light (VL) in the range of wavelengths from 390 to 720 nm. VLB employs the principle of optical backscattering (BS), which allows a device to perform passive communication by reflecting a portion of the incoming energy, with very little energy consumption. Due to complexity and energy constraints, VLB schemes employ simple devices and modulation formats, aimed at supporting low-rate transmission, in the order of some kilobits per second. VLB solves the limitations of conventional VLC by providing a low-energy, low-rate communication link, which also solves the scalability issues inherent to RF communications. Indeed, VLB techniques might represent a viable solution in many different healthcare setups, including operating and emergency rooms, intensive care units, imaging and pathology labs, and hospital wards.
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