| Summary: | 碩士 === 國立臺南大學 === 資訊工程學系碩士班 === 106 === The popularity of wireless networks is a major breakthrough in Internet technology, which is different from previous wired networks. Because mobile phones and tablets are highly mobile and portable, when we are in outdoor places such as schools, restaurants, and shopping centers, we can also access the Internet through AP connections. Therefore, wireless networks have become an indispensable part of life. In the IEEE 802.11 standard mechanism, the connection AP mode is based on the received signal strength indicator. In order to provide good service connection quality and good date rates, the device will find the AP with the strongest signal strength as the connection object. As the user moves, due to the weakened signal strength, the device will select a better base station to connect. This process is called handover. There are two kinds of problems that result from handover behavior. If the user moves back and forth in the overlapping area of the adjacent base station signals, the device needs to always exchange the AP connection, and this behavior easily causes the ping pong effect. The second problem is that if multiple devices are connected on the same base station, it means that these devices grab the same AP resource, which will increase the load weight of the AP, and reduce the AP service quality. This paper mainly discusses how to choose the right AP connection. We analyze the problem of ping-pong problems and load imbalance, and improve the current base station connection mechanism. We use traffic and change hands. This paper proposes a set of Adaptive Weighted Load Balance, dynamically adjusting the service area of the AP. According to the experimental results, when the proposed method dynamically adjusts the service area of the base station, the MN device can reduce the number of unnecessary handovers. At the same time, we consider the flow part in our method to achieve a load balance.
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