A Theoretical Investigation of Channel Wave Multipath Propagation in a Coal Seam
This study investigates the mechanism of channel wave multipath propagation to determine features of a channel wave in a coal seam. For this purpose, deduction formulas were used for different time delays and propagation paths and, subsequently, a multipath fading channel wave pattern was built. MAT...
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| Veröffentlicht in: | Mathematical problems in engineering 2019, Vol.2019 (2019), p.1-7 |
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| container_title | Mathematical problems in engineering |
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| creator | Guo, Xiaohan Ju, Yuanyuan Zhang, Jianhua Guo, Yinjing |
| description | This study investigates the mechanism of channel wave multipath propagation to determine features of a channel wave in a coal seam. For this purpose, deduction formulas were used for different time delays and propagation paths and, subsequently, a multipath fading channel wave pattern was built. MATLAB software was used to simulate the model. To this end, the characteristics of the coal seam and the surrounding rock were considered. The simulation results were compared with results obtained from the model contained in COMSOL software to verify the accuracy of the model. According to the results obtained from the simulation, the proposed model shows a good match with the COMSOL model, which is a common simulation comparison standard. In addition, the channel wave energy approximates to exponential decay at a constant distance from the source, and the multipath propagation considerably affects its energy attenuation. Furthermore, the multipath reflections’ travel time derivation is accomplished properly in the coal seam. |
| doi_str_mv | 10.1155/2019/4314582 |
| format | Article |
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For this purpose, deduction formulas were used for different time delays and propagation paths and, subsequently, a multipath fading channel wave pattern was built. MATLAB software was used to simulate the model. To this end, the characteristics of the coal seam and the surrounding rock were considered. The simulation results were compared with results obtained from the model contained in COMSOL software to verify the accuracy of the model. According to the results obtained from the simulation, the proposed model shows a good match with the COMSOL model, which is a common simulation comparison standard. In addition, the channel wave energy approximates to exponential decay at a constant distance from the source, and the multipath propagation considerably affects its energy attenuation. Furthermore, the multipath reflections’ travel time derivation is accomplished properly in the coal seam.</description><identifier>ISSN: 1024-123X</identifier><identifier>EISSN: 1563-5147</identifier><identifier>DOI: 10.1155/2019/4314582</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Attenuation ; Coal ; Communication channels ; Communications systems ; Computer simulation ; Deduction ; Model accuracy ; Propagation ; Receivers & amplifiers ; Sensors ; Signal processing ; Software ; Transmitters ; Travel time ; Wave power ; Wave propagation ; Wireless networks</subject><ispartof>Mathematical problems in engineering, 2019, Vol.2019 (2019), p.1-7</ispartof><rights>Copyright © 2019 Yinjing Guo et al.</rights><rights>Copyright © 2019 Yinjing Guo et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c360t-fba1ee63a059d4607df808555bb94c4e47f579741c86a90afae4dc2ed3d6ae833</citedby><cites>FETCH-LOGICAL-c360t-fba1ee63a059d4607df808555bb94c4e47f579741c86a90afae4dc2ed3d6ae833</cites><orcidid>0000-0003-2774-7879 ; 0000-0001-8692-9686 ; 0000-0002-3309-0167 ; 0000-0002-4993-3456</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4009,27902,27903,27904</link.rule.ids></links><search><contributor>Vio, Gareth A.</contributor><contributor>Gareth A Vio</contributor><creatorcontrib>Guo, Xiaohan</creatorcontrib><creatorcontrib>Ju, Yuanyuan</creatorcontrib><creatorcontrib>Zhang, Jianhua</creatorcontrib><creatorcontrib>Guo, Yinjing</creatorcontrib><title>A Theoretical Investigation of Channel Wave Multipath Propagation in a Coal Seam</title><title>Mathematical problems in engineering</title><description>This study investigates the mechanism of channel wave multipath propagation to determine features of a channel wave in a coal seam. For this purpose, deduction formulas were used for different time delays and propagation paths and, subsequently, a multipath fading channel wave pattern was built. MATLAB software was used to simulate the model. To this end, the characteristics of the coal seam and the surrounding rock were considered. The simulation results were compared with results obtained from the model contained in COMSOL software to verify the accuracy of the model. According to the results obtained from the simulation, the proposed model shows a good match with the COMSOL model, which is a common simulation comparison standard. In addition, the channel wave energy approximates to exponential decay at a constant distance from the source, and the multipath propagation considerably affects its energy attenuation. 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For this purpose, deduction formulas were used for different time delays and propagation paths and, subsequently, a multipath fading channel wave pattern was built. MATLAB software was used to simulate the model. To this end, the characteristics of the coal seam and the surrounding rock were considered. The simulation results were compared with results obtained from the model contained in COMSOL software to verify the accuracy of the model. According to the results obtained from the simulation, the proposed model shows a good match with the COMSOL model, which is a common simulation comparison standard. In addition, the channel wave energy approximates to exponential decay at a constant distance from the source, and the multipath propagation considerably affects its energy attenuation. 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| subjects | Attenuation Coal Communication channels Communications systems Computer simulation Deduction Model accuracy Propagation Receivers & amplifiers Sensors Signal processing Software Transmitters Travel time Wave power Wave propagation Wireless networks |
| title | A Theoretical Investigation of Channel Wave Multipath Propagation in a Coal Seam |
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