Time Domain and Frequency Domain Deterministic Channel Modeling for Tunnel/Mining Environments

Details

• Personal Author:
  Zhou, Chenming ; Jacksha, Ronald D. ; Yan, Lincan ; Reyes, Miguel A. ; Kovalchik, Peter
• Description:
  Understanding wireless channels in complex mining environments is critical for designing optimized wireless systems operated in these environments. In this paper, we propose two physics-based, deterministic ultra-wideband (UWB) channel models for characterizing wireless channels in mining/tunnel environments --- one in the time domain and the other in the frequency domain. For the time domain model, a general Channel Impulse Response (CIR) is derived and the result is expressed in the classic UWB tapped delay line model. The derived time domain channel model takes into account major propagation controlling factors including tunnel or entry dimensions, frequency, polarization, electrical properties of the four tunnel walls, and transmitter and receiver locations. For the frequency domain model, a complex channel transfer function is derived analytically. Based on the proposed physics-based deterministic channel models, channel parameters such as delay spread, multipath component number, and angular spread are analyzed. It is found that, despite the presence of heavy multipath, both channel delay spread and angular spread for tunnel environments are relatively smaller compared to that of typical indoor environments. The results and findings in this paper have application in the design and deployment of wireless systems in underground mining environments. [Description provided by NIOSH]
• Subjects:
  Electromagnetic Fields Environment Mining Occupational Health Safety
• Keywords:
  Communications Equipment Communication Systems Electromagnetic Fields EMF Environmental Factors Mining Industry Radio Waves Tunneling Underground Mines
• Series:
  Mining Publications
• ISSN:
  1937-8718
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; OSHA Region 3 ; Pennsylvania ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division ; SMRD - Spokane Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  15 pdf pages
• Volume:
  79
• NIOSHTIC Number:
  nn:20050956
• Citation:
  Prog Electromagn Res C 2017 Nov; 79:209-223
• Email:
  czhou@cdc.gov
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0d0dcc8d738a8906ff5a3120e8ff1780e542e73385e3071751e96f739d8eca3634945f65f4c4f5ddcdcd0f38d45327f405ca5c38d1f289c74296523ec1beec58
• Download URL:
  https://stacks.cdc.gov/view/cdc/227633/cdc_227633_DS1.pdf
• File Type:
  [PDF - 784.49 KB ]