Autonomous reconfigurable intelligent surfaces through wireless energy harvesting
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
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In this paper, we examine the potential for a reconfigurable intelligent surface (RIS) to be powered by energy harvested from information signals. This feature might be key to reap the benefits of RIS technology's lower power consumption compared to active relays. We first identify the main RIS power-consuming components and then propose an energy harvesting and power consumption model. Furthermore, we formulate and solve the problem of the optimal RIS placement together with the amplitude and phase response adjustment of its elements in order to maximize the signal-to-noise ratio (SNR) while harvesting sufficient energy for its operation. Finally, numerical results validate the autonomous operation potential and reveal the range of power consumption values that enables it.
CitationNtontin, K. [et al.]. Autonomous reconfigurable intelligent surfaces through wireless energy harvesting. A: IEEE Vehicular Technology Conference. "2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring): 19-22 June 2022: proceedings". Institute of Electrical and Electronics Engineers (IEEE), 2022, ISBN 9781665482431. DOI 10.1109/VTC2022-Spring54318.2022.9860773.