Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Telos: enabling ultra-low power wireless research
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Path loss exponent estimation for wireless sensor network localization
Computer Networks: The International Journal of Computer and Telecommunications Networking
Wireless sensor network localization techniques
Computer Networks: The International Journal of Computer and Telecommunications Networking
Reducing the Calibration Effort for Probabilistic Indoor Location Estimation
IEEE Transactions on Mobile Computing
Evaluation of impact factors on RSS accuracy for localization and tracking applications
Proceedings of the 5th ACM international workshop on Mobility management and wireless access
Learning Adaptive Temporal Radio Maps for Signal-Strength-Based Location Estimation
IEEE Transactions on Mobile Computing
Experimental comparison of RSSI-based localization algorithms for indoor wireless sensor networks
Proceedings of the workshop on Real-world wireless sensor networks
Wireless Sensor Networks
Radio characterization of 802.15.4 and its impact on the design of mobile sensor networks
EWSN'08 Proceedings of the 5th European conference on Wireless sensor networks
Continuous Close-Proximity RSSI-Based Tracking in Wireless Sensor Networks
BSN '10 Proceedings of the 2010 International Conference on Body Sensor Networks
Wireless sensor networks for healthcare: A survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Context driven enhancement of RSS-based localization systems
ISCC '11 Proceedings of the 2011 IEEE Symposium on Computers and Communications
Relative location estimation in wireless sensor networks
IEEE Transactions on Signal Processing
A survey of indoor positioning systems for wireless personal networks
IEEE Communications Surveys & Tutorials
Survey of Wireless Indoor Positioning Techniques and Systems
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
Propagation measurements and models for wireless communications channels
IEEE Communications Magazine
Automatic virtual calibration of range-based indoor localization systems
Wireless Communications & Mobile Computing
RSSI-based relative localisation for mobile robots
Ad Hoc Networks
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Indoor positioning systems based on Received Signal Strength Indicator (RSSI) in Wireless Sensor Networks (WSNs) are commonly used. The position accuracy in these systems is highly affected by the wireless medium variability, and therefore, a precise calibration is necessary to translate the power measurements to corresponding distance between each pair of nodes. In this paper, we propose a calibration scheme that is tailored to Body Area Networks (BANs) applications. The a priori knowledge about the environment conditions in these applications can increase the accuracy of the localization system, improve its robustness to interference, and reduce the number of RSSI measurements which are required for the calibration process compared to the traditional calibration methods. We define a criterion to obtain the calibration scheme using different a priori knowledge for both the mapping table and the path-loss model parameters. For evaluation of our new calibration scheme, we conducted a series of experiments in a real-world indoor environment, focusing on a proximate environment that is commonly used in BANs. We showed that for a tracking application, calibration methods utilizing the a priori knowledge are superior in terms of localization accuracy over other existing calibration methods with relatively small number of offline measurements.