| Summary: | 碩士 === 淡江大學 === 電機工程學系碩士班 === 104 === “Technology comes from human nature.” People want to make our life more convenient. By these desires, many people invent lots of technique to make our life better. One of remarkable technique is wireless charging, since mobile devices always run off battery swiftly. When the electrical products are powerless, people need to find some ways to charge devices efficiently. Therefore, in recent year, researchers invent the wireless charger by using the traditional charger without the transmission line.
Currently, most of the electrical industrial company create the electromagnetic induction wireless chargers. This technology can only charge electrical products in a small distance. In recent year, Washington University in U.S.A., invent the RF wireless charger by using Wi-Fi signal, and named it POWIFI.
POWIFI has been proved that it can be used to charge some devices in a long distance. Therefore, in this paper, we focus on the study that how to choose the highest efficient wireless AP in a place, which can be an efficient charger while provides high network bandwidth. If there are a lot of user in an area, and all of the user choose the same wireless AP to connect, the AP they choose is going to be overloaded. To solve this problem, we propose a mechanism to evaluate that which AP in a place is a good choice for serving user. The simulation results show that how we get this purpose in this paper. Moreover, we also show some future work based on the result in the end of this article, and make this thesis more complete.
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