Characterization of UHF multipath radio channels in factory buildings

Research output: Contribution to journalArticle

Abstract

Wideband multipath measurements at 1300 MHz were made in five factory buildings in Indiana. Root-mean-square delay spread (σ) values were found to range between 30 and 300 ns. Median σ values were 96 ns for line-of-sight paths along aisleways and 105 ns for obstructed paths across aisles. Worst-case σ of 300 ns was measured in a modern open-plan metal-working factory. Delay spreads were not correlated with transmitter-receiver separation of factory topography but were affected by factory inventory, building construction materials, and wall locations. Wideband path loss measurements consistently agreed with continuous-wave measurements made at identical locations. It is shown that such empirical data suggest independent and identical uniform distributions on the phases of resolvable multipath signal components. Average factory path loss was found to be a function of distance to the 2.2 power.

Original languageEnglish (US)
Pages (from-to)1058-1069
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Volume37
Issue number8
DOIs
StatePublished - Aug 1989

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Industrial plants
Metal working
Transceivers
Topography

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Characterization of UHF multipath radio channels in factory buildings. / Rappaport, Theodore S.

In: IEEE Transactions on Antennas and Propagation, Vol. 37, No. 8, 08.1989, p. 1058-1069.

Research output: Contribution to journalArticle

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