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RSS FeedsSensors, Vol. 18, Pages 3437: A High Accuracy Time-Reversal Based WiFi Indoor Localization Approach with a Single Antenna (Sensors)

 
 

13 october 2018 20:01:18

 
Sensors, Vol. 18, Pages 3437: A High Accuracy Time-Reversal Based WiFi Indoor Localization Approach with a Single Antenna (Sensors)
 




In this paper, we study the influence of multipath magnitude, bandwidth, and communication link number on the performance of the existing time-reversal (TR) based fingerprinting localization approach and find that the localization accuracy deteriorates with a limited bandwidth. To improve the localization performance, by exploiting two unique location-specified signatures extracted from Channel State Information (CSI), we propose a high accuracy TR fingerprint localization approach, HATRFLA. Furthermore, we employ a density-based spatial clustering algorithm to minimize the storage space of the fingerprint database by adaptively selecting the optimal number of fingerprints for each location. Experimental results confirm that the proposed approach can efficiently mitigate accuracy deterioration caused by a limited bandwidth and consequently, achieve higher accuracy compared with the existing TR localization approach.


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13 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 18, Pages 3438: A Novel Method and an Equipment for Generating the Standard Moisture in Gas Flowing through a Pipe (Sensors)
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