Measurements and Models of Radio Frequency Impulsive Noise for Indoor Wireless Communications

Kenneth L. Blackard, Theodore S. Rappaport, Charles W. Bostian

Research output: Contribution to journalArticlepeer-review


This paper presents the results of average and impulsive noise measurements inside several office buildings and retail stores. The noise measurement system operated at 918 MHz, 2.44 GHz, and 4 GHz with a nominal 40 MHz 3 dB RF bandwidth. Omnidirectional and directional antennas were used to investigate the characteristics and sources of RF noise in indoor channels. Statistical analyses of the measurements are presented in the form of peak amplitude probability distributions, pulse duration distributions, and interarrival time distributions. Simple first-order mathematical models for these statistical characterizations are also presented. These analyses indicate that photocopiers, printers (both line printers and cash register receipt printers), elevators, and microwave ovens are significant sources of impulsive noise in office and retail environments.

Original languageEnglish (US)
Pages (from-to)991-1001
Number of pages11
JournalIEEE Journal on Selected Areas in Communications
Issue number7
StatePublished - Sep 1993

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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