Connectivity of wireless sensor nodes in metal rich environment: Expectations and reality
conference paper
Connectivity among the nodes of a wireless sensor network (WSN) is essential for reliable transfer of sensed data. Existence of theoretical or empirical radio pathloss models are indispensable for optimal design of WSN. This paper covers the following topics: a)Radio channel measurements and characterization in difficult propagation environment. Measurements are performed in metal rich environment, in particular on a metal bridge segment. Signal pathloss is determined in 868MHz ISM band; b) End-to-end performance measurements in the same environment using commercial (off-the-shelf) communication nodes based on CC1101 transceiver operating at 868MHz band. c) Expected performance based on the measured signal pathloss is compared with actual performance of off-the-shelf nodes. Results presented in this paper were deployed for design and simulation of WSNs used in asset monitoring applications, in particular integrity monitoring of metal bridge structures.
Topics
TNO Identifier
519618
Publisher
IEEE
Source title
8th European Conference on Antennas and Propagation, EuCAP 2014, 6-11 April 2014, Amsterdam, The Netherlands
Place of publication
Piscataway, NJ
Pages
2974-2977
Files
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