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An Improved Indoor Location Technique Using Combination of Kalman Filter and Centroid Positioning

Nik Fariz Nik Ahmad Aziz, Norziana Jamil, and Marina Md Din
Institute of Informatics and Computing in Energy, Universiti Tenaga Nasional (UNITEN), Malaysia
Abstract—Indoor positioning technique is used to trace the location of entities within a non-space environment riding from the incapability of GPS to do so. Most of indoor localization techniques proposed by researchers to discover an optimized solution for indoor location tracking that has high precision and accuracy. This paper proposes an improved indoor location technique by implementing Trilateration and Kalman Filter that can manipulate noise signal reduced from raw Received Signal Strength Indicator (RSSI). This paper also proposed the uses of Centroid Positioning that be amended on top of Kalman Filter which to study whether it can improve the accuracy rate or not. Upon implementing the technique, observation and comparison are made to measure the effectiveness and reliability of the uses of Kalman Filter and Centroid Positioning. Our analysis and finding show that the enhanced indoor positioning technique has improved the accuracy tremendously.
 
Index Terms—Indoor Positioning Technique, Kalman Filter (KF), Centroid Positioning (CP), Received Signal Strength Indicator (RSSI), Trilateration

Cite: Nik Fariz Nik Ahmad Aziz, Norziana Jamil, and Marina Md Din, "An Improved Indoor Location Technique Using Combination of Kalman Filter and Centroid Positioning," Journal of Communications, vol. 14, no. 1, pp. 17-25, 2018. Doi: 10.12720/jcm.14.1.17-25
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