Abstract
The distance estimation between nodes is a crucial requirement for localization and object tracking. Received signal strength (RSS) measurement is one of the used methods for the distance estimation in wireless networks. Its main advantage is that there are no additional hardware requirements. This paper describes a lateration approach for localization and distance estimation using RSS. For the purpose of investigation of RSS uncertainty, several scenarios were designed for both indoor and outdoor measurements. The first set of RSS measurement scenarios was proposed with the intention of hardware independent investigation of radio channel. For the second set of measurements, we employed IRIS sensor nodes to evaluate the distance estimation with certain devices. The experiments considered also obstacles in the radio channel. The results obtained in the proposed scenarios present usability of the method under different conditions. There is also a signal propagation model constructed from measured data at a node, which subsequently serves for distance determination.
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Moravek, P., Komosny, D., Simek, M. et al. Investigation of radio channel uncertainty in distance estimation in wireless sensor networks. Telecommun Syst 52, 1549–1558 (2013). https://doi.org/10.1007/s11235-011-9522-4
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DOI: https://doi.org/10.1007/s11235-011-9522-4