Determining the Access Point for Local Wireless Network IEEE802.11 based on APSF Approach
Mahdi Morsali, Mohammad Reza Heydarinejad, Alireza Nomani Pour · 2012
The performance of each station in wireless network IEEE 802. 11 highly associated with the ability of that station to identify AP. AP (Access Point) provides the most important service in a wireless local network. The common mechanism of association to AP in most wireless stations highly depends on the signal intensity of the station received from each neighboring AP. In other words, a station associated to the AP that has the strongest signal level. It is clear that such an algorithm is led to minor optimal performance due not to paying attention to load balance in different IPs. A parameter named APSF (Access Point Selection Factor) is introduced in this article which by itself is a function of signal strength, AP load, throughput and channel speed. The difference between this method and other common methods is simultaneous using of centralized and decentralized approach to choose an appropriate AP. The simulation results indicate that choosing AP using APSF has a much more better throughput compared to that of common approaches.