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- W4328006305 abstract "Recently, relay resonator units have been introduced into magnetic resonant coupling enabled wire-less power transfer (MRC-WPT) systems for improving charging distances and efficiency. Accurate mutual inductances information between coils (i.e. TX, relay and RX) will be more essential in such relay based MRC-WPT MIMO systems. However, most existing channel estimation methods are complex and time-consuming in operation, and often some feedback information from RXs is required, which might not achieved in mobile dynamic environment. In this work, we study the adaptive random beamforming(ARBF) problem in relay based MRC-WPT MIMO system and propose the ARBF method to achieve maximum power transfer efficiency(PTE) without mutual inductances information. This scheme mainly consists of weights distribution prediction and iterative Monte Carlo sampling and re-sampling to search an optimal weights solution without any information feedback from RXs. The simulation results demonstrate that our ARBF algorithm can approach the optimal performance fast even in a mobile environment and the gap is always smaller than 5%." @default.
- W4328006305 created "2023-03-22" @default.
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- W4328006305 date "2022-08-01" @default.
- W4328006305 modified "2023-09-23" @default.
- W4328006305 title "Adaptive Random Beamforming in Relay Based Magnetic MIMO WPT System" @default.
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- W4328006305 doi "https://doi.org/10.1109/bigcom57025.2022.00061" @default.
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