An Analysis of Wi-Fi Based Indoor Positioning AccuracyThe increasing demand for location based services inside buildings has made indoor positioning a significant research topic. This study deals with indoor positioning using the Wireless Ethernet IEEE 802.11 (Wireless Fidelity, Wi-Fi) standard that has a distinct advantage of low cost over other indoor wireless technologies. The aim of this study is to examine several aspects of location fingerprinting based indoor positioning that affect positioning accuracy. Overall, the positioning accuracy achieved in the performed experiments is 2.0 to 2.5 meters.

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The Theoretical Basis and Practical Usage of the Simulation for Creating IT Solutions for Data Management SystemsThis paper presents results of the research concerning usage of simulation for creating IT solutions corresponding to the Data-And-Rules-Saved-In-Resource (DARSIR) concept of designing data management systems while using the Radio Frequency Identification (RFID) technology. During research typical approaches for creation of simulation tools were studied. DARSIR simulation tool was developed and a practical experiment has been conducted in order to get an IT solution in the form of multiple RPML documents.