Distinguished access point optimization algorithm in wireless local area network

Abstract

The invention relates to a distinguished access point optimization method in a wireless local area network. The method comprises the following steps of constructing a hierarchical structure of an analytic hierarchy process, and solving the relative priority among four kinds of user standards; solving the second layer of standard weight vectors; solving the maximum feature roots and feature vectors of paired comparison matrixes to obtain weight vectors; generating a third layer of paired comparison matrixes and solving relative weight matrixes; building the paired comparison matrixes corresponding to the third layer of elements according to the second layer of standards, solving the main feature vectors of the paired comparison matrix, normalizing the result after the consistency inspection is passed and solving the third layer of relative weight vectors of an alternative access node bandwidth and the delayed third layer of relative weight vector; finally, combining the integral weight vectors and building a dynamic selection algorithm. The method has the advantages that the distinguished service quality of the user is improved, the association selection of the user is dynamically optimized for ensuring the service quality of the user, the network overall throughput capacity can be improved, and the network load balance performance is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of wireless local area network access, and in particular relates to an access node optimization selection method based on node service quality modeling and collaborative filtering recommendation, specifically a differentiated access point optimization algorithm in a wireless local area network. Background technique [0002] IEEE 802.11 WLAN has the advantages of convenient deployment, low cost and high flexibility, and has become a popular wireless connection technology at present. Wireless local area networks are widely deployed in airports, hospitals, coffee shops, libraries and other places. In the 802.11 protocol, users associate access points based on signal strength. Although the implementation is simple, it leads to poor network performance and unbalanced load. It can be seen that the associated access point determines the final performance of the user, so the association optimization of access point...

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Problems solved by technology

[0010] (2) At present, most of the relevant research is aimed at the single-objective optimization, but this method cannot guarantee the ideal performance of the workstation under all circumstances.

[0011] (3) Many selection algorithms have high complexity, and the time spent by workstations on channel scanning and waiting on each channel is also very high. Each workstation needs to repeatedly calculate the selection algorithm, so the efficiency of workstations associated with access points is greatly reduced.

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