Secure transmission of simultaneous wireless information and power transfer system for Internet of things
- Autores: Shangzhi Pu, Hongying Shu
- Localización: Applied Mathematics and Nonlinear Sciences, ISSN-e 2444-8656, Vol. 8, Nº. 1, 2023, págs. 2785-2792
- Idioma: inglés
- Enlaces
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Resumen
Due to the excellent broadcasting characteristics of radio signals, simultaneous wireless information and power transfer(SWIPT) can transmit both information and energy, and provide users with stable power supply. Wireless channel has thecharacteristics of openness, which will lead to the leakage of information in the SWIPT system. It is one of the researchhotspots in the industry to ensure the secure transmission of information in SWIPT system where there are differences inthe transmission of energy and information. This paper proposes an ‘information-energy’ dynamic switching opportunisticsecure transmission scheme. First, a model considering three factors of multi-cell, multi-user and multiple eavesdropperis established which assumes that the user adopts a time-domain switching receiver that collects energy in a nonlinearmodel. Then, combined with the time-varying wireless channel, a dynamic information energy switching transmissionscheme based on signal-to-interference noise ratio threshold is proposed. Finally, the energy and information transmissionperformance of the scheme are comprehensively analysed
