Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/8C86FF93-A9ED-4E6B-8154-CD4B9201711C | - |
| Αναγνωριστικό | https://doi.org/10.1109/TWC.2018.2812889 | - |
| Αναγνωριστικό | https://ieeexplore.ieee.org/abstract/document/8315145 | - |
| Γλώσσα | en | - |
| Μέγεθος | 16 pages | en |
| Τίτλος | Sensitive and nonlinear far-field RF energy harvesting in wireless communications | en |
| Δημιουργός | Alevizos Panagiotis | en |
| Δημιουργός | Αλεβιζος Παναγιωτης | el |
| Δημιουργός | Bletsas Aggelos | en |
| Δημιουργός | Μπλετσας Αγγελος | el |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περίληψη | This paper studies both limited sensitivity and nonlinearity of far field RF energy harvesting observed in reality and quantifies their effect, attempting to fill a major hole in the simultaneous wireless information and power transfer (SWIPT) literature. RF harvested power is modeled as an arbitrary nonlinear, continuous, and non-decreasing function of received power, by considering limited sensitivity and saturation effects. RF harvester's sensitivity may be several dBs worse than communications receiver's sensitivity, potentially rendering RF information signals useless for energy harvesting purposes. Given finite number of datapoint pairs of harvested (output) power and corresponding input power, a piecewise linear approximation is applied and the statistics of the harvested power are offered, as a function of the wireless channel fading statistics. Limited number of datapoints is needed and accuracy analysis is also provided. Case studies include duty-cycled (non-continuous), as well as continuous SWIPT, comparing with industry-level, RF harvesting. The proposed approximation, even though simple, offers accurate performance for all studied metrics. On the other hand, linear models or nonlinear-unlimited sensitivity harvesting models deviate from reality, especially in the low-input-power regime. The proposed methodology can be utilized in the current and future SWIPT research. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2019-09-09 | - |
| Ημερομηνία Δημοσίευσης | 2018 | - |
| Θεματική Κατηγορία | Backscatter | en |
| Θεματική Κατηγορία | Energy harvesting | en |
| Θεματική Κατηγορία | Power-splitting | en |
| Θεματική Κατηγορία | Rectennas | en |
| Θεματική Κατηγορία | Simultaneous wireless information and power transfer | en |
| Θεματική Κατηγορία | Time-switching | en |
| Βιβλιογραφική Αναφορά | P.N. Alevizos and A. Bletsas, "Sensitive and nonlinear far-field RF energy harvesting in wireless communications," IEEE Trans. Wirel. Commun., vol. 17, no. 6, pp. 3670-3685, Jun. 2018. doi: 10.1109/TWC.2018.2812889 | en |
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