Analysis of the RMS delay spread of indoor radio propagation channels

The results of the analysis of root mean square (RMS) delay spread for indoor radio propagation data collected at two office buildings are presented. The database for this analysis consists of 12000 impulse response profiles. The results indicate that the RMS delay spread tau /sub RMS/ is typically between 10 and 50 ns, with mean values between 20 and 30 ns. The RMS delay spread over large areas can be well described with normal distributions. The mean values of tau /sub RMS/ increase with increasing the transmitter-receiver antenna separation. tau /sub RMS/ values for spatially adjacent profiles are highly correlated. The average RMS delay spread at each location has a high linear correlation with the average path loss for that location.<<ETX>>

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

[2]  P. Bello.  Characterization of Randomly Time-Variant Linear Channels , 1963 .

[3]  D. Devasirvatham.  A comparison of time delay spread and signal level measurements within two dissimilar office buildings , 1987 .

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

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

[6]  H. Hashemi.  Simulation of the urban radio propagation channel , 1979, IEEE Transactions on Vehicular Technology.

[7]  Theodore S. Rappaport,et al.  Statistical channel impulse response models for factory and open plan building radio communicate system design , 1991, IEEE Trans. Commun..

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

[9]  Susumu Yoshida,et al.  Multipath delay estimation for indoor wireless communication , 1990, 40th IEEE Conference on Vehicular Technology.

[10]  M. Gans.  A power-spectral theory of propagation in the mobile-radio environment , 1972 .

[11]  H. Hashemi,et al.  Statistical modeling of the indoor radio propagation channel. I , 1992, [1992 Proceedings] Vehicular Technology Society 42nd VTS Conference - Frontiers of Technology.

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

[13]  W. C. Jakes,et al.  Microwave Mobile Communications , 1974 .

[14]  Samy A. Mahmoud,et al.  A comparison of indoor radio propagation characteristics at 910 MHz and 1.75 GHz , 1989, IEEE J. Sel. Areas Commun..

[15]  K. Pahlavan,et al.  Multipath propagation measurements on manufacturing floors at 910 MHz , 1989 .

[16]  S. Kazeminejad,et al.  Frequency response measurements of the indoor channel , 1990, 1990 Symposium on Antenna Technology and Applied Electromagnetics.

[17]  Michel Fattouche,et al.  Measurement of the frequency response of the indoor channel , 1990, Proceedings of the 33rd Midwest Symposium on Circuits and Systems.

[18]  George L Turin,et al.  Communication through noisy, random-multipath channels , 1956 .

[19]  H. Suzuki,et al.  A Statistical Model for Urban Radio Propogation , 1977, IEEE Trans. Commun..