Optimization of Wi-Fi Access Point Placement for Indoor Localization

Farkas, Károly and Huszák, Árpád and Gódor, Győző (2013) Optimization of Wi-Fi Access Point Placement for Indoor Localization. Journal IIT (Informatics & IT Today), 1 (1). pp. 28-33. ISSN 1339--147X

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The popularity of location based applications is undiminished today. They require accurate location information which is a challenging issue in indoor environments. Wireless technologies can help derive indoor positioning data. Especially, the Wi-Fi technology is a promising candidate due to the existing and almost ubiquitous Wi-Fi infrastructure. The already deployed Wi-Fi devices can also serve as reference points for localization eliminating the cost of setting up a dedicated system. However, the primary purpose of these Wi-Fi systems is data communication and not providing location services. Thus their positioning accuracy might be insufficient. This accuracy can be increased by carefully placing the Wi-Fi access points to cover the given territory properly. In this paper, our contribution is a method based on simulated annealing, what we propose to find the optimal number and placement of Wi-Fi access points with regard to indoor positioning. We investigate its performance in a real environment scenario via simulations.

Item Type: Article
Uncontrolled Keywords: Indoor positioning, Wi-Fi, Simulated annealing, MATLAB
Subjects: T Technology / alkalmazott, műszaki tudományok > T2 Technology (General) / műszaki tudományok általában
Depositing User: Dr. Károly Farkas
Date Deposited: 12 Sep 2014 20:24
Last Modified: 12 Sep 2014 20:24

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