A line-of-sight propagation performance study for underground mining in an arched-shaped tunnel environment

Intikhab Hussain, Frederick Cawood and Rex van Olst

Journal of Electromagnetic Waves and Applications, 2019, vol. 33, issue 15, 2037-2045

Abstract: This article investigates the effect of antenna polarization, directivity and placement on the line-of-sight wideband radio channel characteristics of an arch-shaped underground mine tunnel over the 2.4 GHz frequency band. Access point-to-access point and access point-to-mobile wireless communication configurations were examined for linearly and circularly polarized antennas mounted in the center, on the wall and ceiling. The circularly polarized directional antennas offer higher coherent bandwidth, whereas the linearly polarized omni-directional antennas offer lower attenuation rate. A higher directive antenna enhances coverage area, coverage reliability and channel coherent bandwidth. For access point-to-mobile communication, a circularly polarized directional antenna with a horizontally polarized omni-directional antenna gives the best performance in terms of attenuation rate and coherent bandwidth.

Date: 2019
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DOI: 10.1080/09205071.2019.1662334

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