UHF fading in factories

The authors detail the results of narrowband propagation measurements performed at five factories. The extensive empirical data indicate that path loss is dependent upon local surroundings and is log-normally distributed, temporal fading is Rician, and small-scale signal fluctuations due to receiver motion are primarily Rayleigh, although Rician and log-normal distributions fit some of the data. Shadowing effects of common factory equipment likely to obstruct indoor radio paths are also examined. >

[1]  Theodore S. Rappaport,et al.  A beacon navigation method for autonomous vehicles , 1989 .

[2]  Theodore S. Rappaport,et al.  UHF MULTIPATI-I AND PROPAGATION MEASUREMENTS IN MANUFACTURING ENVIRONMENTS , 1988 .

[3]  George L. Turin,et al.  A statistical model of urban multipath propagation , 1972 .

[4]  J. van Rees.  Measurements of the wide-band radio channel characteristics for rural, residential, and suburban areas , 1987 .

[5]  T. Rappaport.  Characterization of UHF multipath radio channels in factory buildings , 1989 .

[6]  William C. Jakes.  Largescale Variations of the Average Signal , 1974 .

[7]  Theodore S. Rappaport,et al.  Characterising the UHF factory radio channel , 1987 .

[8]  S. E. Alexander,et al.  Radio propagation within buildings at 900 MHz , 1982 .

[9]  Ieee Journal On Selected Areas In Communications, Vol. 9, No. 6, August 1991 , .

[10]  Theodore S. Rappaport.  Discone design using simple n-connector feed , 1987 .

[11]  B.K. Johnson,et al.  Propagation of radio signals inside buildings at 150, 450 and 850 MHz , 1986, 36th IEEE Vehicular Technology Conference.

[12]  David R. Cox.  910 MHz Urban Mobile Radio Propagation: Multipath Characteristics in New York City , 1973, IEEE Trans. Commun..

[13]  S. E. Alexander.  Characterising buildings for propagation at 900 MHz , 1983 .

[14]  Adel A. M. Saleh,et al.  Distributed Antennas for Indoor Radio Communications , 1987, IEEE Trans. Commun..

[15]  J. Goldhirsh,et al.  Roadside tree attenuation measurements at UHF for land mobile satellite systems , 1987 .

[16]  D. C. Cox,et al.  800-MHz attenuation measured in and around suburban houses , 1984, AT&T Bell Laboratories Technical Journal.

[17]  A.A.M. Saleh,et al.  A Statistical Model for Indoor Multipath Propagation , 1987, IEEE J. Sel. Areas Commun..

[18]  Jun Horikoshi,et al.  1.2 GHz band wave propagation measurements in concrete building for indoor radio communications , 1986, IEEE Transactions on Vehicular Technology.

[19]  Theodore S. Rappaport.  Delay spread and time delay jitter for the UHF factory multipath channel , 1988, 38th IEEE Vehicular Technology Conference.

[20]  Jr. Mikell P. Groover.  Automation, production systems, and computer-aided manufacturing , 1980 .

[21]  J. van Rees.  Measurements of impulse response of a wideband radio channel at 910 MHz from a moving vehicle , 1986 .

[22]  D.C. Cox,et al.  Universal portable radio communications , 1985, IEEE Transactions on Vehicular Technology.

[23]  D. Devasirvatham.  Time delay spread and signal level measurements of 850 MHz radio waves in building environments , 1986 .

[24]  Theodore S. Rappaport,et al.  UHF multipath and propagation , 1988, IEEE Global Telecommunications Conference and Exhibition. Communications for the Information Age.

[25]  R. Bultitude.  Measurement, characterization and modeling of indoor 800/900 MHz radio channels for digital communications , 1987, IEEE Communications Magazine.

[26]  Seymour Stein,et al.  Fading Channel Issues in System Engineering , 1987, IEEE J. Sel. Areas Commun..

[27]  Michael J. Marcus,et al.  Regulatory policy considerations for radio local area networks , 1987, IEEE Communications Magazine.