| Summary: | 碩士 === 中華大學 === 電機工程學系 === 107 === The development of modern science and technology has entered the era of artificial intelligence, but the concentration of carbon dioxide in the atmosphere has increased year by year, and the greenhouse effect caused by it has become a new research field in order to slow down the warming phenomenon.
In the rapid development of the fifth generation of mobile communication technology, various wireless charging technologies have been presented in recent years. At present, wireless charging technology is mainly charged by electromagnetic waves. Its technology can be divided into four types: electromagnetic induction type, magnetic field resonance type, radio wave type and electric field coupling type. Among them, the radio wave type is suitable for the far distance charging system. During transmission, both the packets and the power are propagated to the destination.
This research proposes a joint wireless charging, beam and time resource allocation mechanism for millimeter-wave base station networks, and transmits resource allocation in the downlink based on Time Division Multiple Access (TDMA) technology. To allocate resource for users in small cells, the resource needs to be satisfied by each user that can meet the requirements to ensure the quality of service (QoS). At the same time, considering the main transmission gain and the main beam interference of millimeter wave, beamforming technology is added to improve the system capacity of small cells and the optimal ratio between energy charging and information transmission can be determined, and good energy capacity efficiency is obtained.
Simulation results show that the traditional time-division multiplex can obtain good energy capacity efficiency, data transmission and wireless charging ratio with increased interference and increased users. After adding the influence factor of the beam factor, the result shows that the cell performance can be improved. Each user in the network gets a larger amount of wireless charging, allowing users to obtain better data transmission efficiency and service quality.
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