Mobility-based Tracking Using WiFi RSS in Indoor Wireless Sensor Networks
Résumé
Tracking of mobile sensors is an important research issue in wireless sensor networks. This paper presents a zoning-based tracking technique that works efficiently in indoor environments. The targeted area is composed of several zones, the objective being to determine the zone of the mobile sensor in a real-time tracking process. The proposed method creates a belief functions framework that combines evidence using the sensors mobility and observations. To do this, a mobility model is proposed by using the previous state of the sensor and its assumed maximum speed. Also, an observation model is constructed based on fingerprints collected as WiFi signals strengths received from surrounding Access Points. Real experiments demonstrate the effectiveness of this approach and its competence compared to state-of-the-art methods.
Mots clés
- WiFi signals
- tracking
- mobility
- evidence fusion
- Belief functions
- Computational modeling
- Real-time systems
- WiFi signals strengths
- indoor radio
- mobility management (mobile radio)
- RSSI
- target tracking
- wireless LAN
- mobile sensor
- real-time tracking process
- mobility model
- Wireless sensor networks
- WiFi RSS
- indoor wireless sensor networks
- zoning-based tracking technique
- access points
- mobility-based tracking
- Sensors
- Wireless fidelity
- Indoor environments
- Data models
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