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Sensitive and nonlinear far-field RF energy harvesting in wireless communications

Alevizos Panagiotis, Bletsas Aggelos

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/8C86FF93-A9ED-4E6B-8154-CD4B9201711C-
Αναγνωριστικόhttps://doi.org/10.1109/TWC.2018.2812889-
Αναγνωριστικόhttps://ieeexplore.ieee.org/abstract/document/8315145-
Γλώσσαen-
Μέγεθος16 pagesen
ΤίτλοςSensitive and nonlinear far-field RF energy harvesting in wireless communicationsen
ΔημιουργόςAlevizos Panagiotisen
ΔημιουργόςΑλεβιζος Παναγιωτηςel
ΔημιουργόςBletsas Aggelosen
ΔημιουργόςΜπλετσας Αγγελοςel
ΕκδότηςInstitute of Electrical and Electronics Engineersen
ΠερίληψηThis 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
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2019-09-09-
Ημερομηνία Δημοσίευσης2018-
Θεματική ΚατηγορίαBackscatteren
Θεματική ΚατηγορίαEnergy harvestingen
Θεματική ΚατηγορίαPower-splittingen
Θεματική ΚατηγορίαRectennasen
Θεματική ΚατηγορίαSimultaneous wireless information and power transferen
Θεματική ΚατηγορίαTime-switchingen
Βιβλιογραφική ΑναφοράP.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.2018.2812889en

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