Fairness of Data Transmission on Seamless Wireless Network Systems Using Association Control
Date Issued
2008
Date
2008
Author(s)
Shieh, Yui-Lin
Abstract
In recent years, wireless network systems have been widely researched and used in applications. The method in making the choice of access point while taking the bandwidth and signal strength into consideration by the mobile terminal is an important issue in a wireless network platform composed of multiple devices. During the process of information transmission to mobile clients, if the client can recognize the Max-Min fairness of the entire network, it can usually help increase the efficiency of the network usage and information exchange. o achieve the increase in efficiency when the client conducts the switch between access points, we propose the algorithm of SDPL in this thesis. This algorithm serves the purpose of deciding the timing for handoff. This method not only improves the conventional way of handoff between access points, but also lowers the complexity of the algorithm itself. The traditional method of higher priority by signal strength and the augment threshold value in RSS is also compared with the algorithm we have proposed. After many times of simulation experiments, the results indicate that SDPL algorithm can achieve better timing in handoff and also increase the stability and efficiency of the whole system. ax-Min fairness plays an important role in the setting of multiple access points and multiple clients. Taking Max-Min fairness of the system into consideration will also affect the timing of the mobile client to handoff. The FbF algorithm is discussed in close detail in this thesis. Through experiment and simulation, we discover an algorithm that combines both SDPL and FbF not only enhances the system throughput of the whole wireless network system but also, at the same time, lessens the waste of efficiency of mobile device during handoff between access points.
Subjects
Wireless network system
access point
bandwidth
signal strength
mobile terminal
Max-Min Fairness
SDPL
system throughput
Type
thesis
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