1989
DOI: 10.1109/49.16840
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A comparison of indoor radio propagation characteristics at 910 MHz and 1.75 GHz

Abstract: There has recently been much deliberation regarding whether indoor radio communications systems should operate in the 900 MHz band, or in the 1.7 GHz band. However, there are no propagation results available in the literature which compare indoor channel characteristics in the two bands. This paper presents the results of temporally and spatially distributed wideband (impulse response) propagation measurements on fixed indoor radio channels in these bands. Impulse response parameters, as well as envelope fadin… Show more

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Cited by 187 publications
(34 citation statements)
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“…The profileat-a-point is what we call the multipath intensity profile (MIP); it has also been called the "local power delay profile" [12]. When averaged spatially around a point (say, over a region whose radius is several wavelengths at the center frequency), we call it the power delay profile (PDP) 2 , which has also been called the "small-scale-averaged power delay profile" [12]. It should be noted that, when the measurement bandwidth, W , is small compared to the center frequency, local spatial variations in power within a bin are caused by phase changes among the echoes received in that bin; when W is comparable to the center frequency (as it is for our 6-GHz data), the variations are more likely caused by echoes changing bins over the averaging region.…”
Section: Definitionsmentioning
confidence: 99%
“…The profileat-a-point is what we call the multipath intensity profile (MIP); it has also been called the "local power delay profile" [12]. When averaged spatially around a point (say, over a region whose radius is several wavelengths at the center frequency), we call it the power delay profile (PDP) 2 , which has also been called the "small-scale-averaged power delay profile" [12]. It should be noted that, when the measurement bandwidth, W , is small compared to the center frequency, local spatial variations in power within a bin are caused by phase changes among the echoes received in that bin; when W is comparable to the center frequency (as it is for our 6-GHz data), the variations are more likely caused by echoes changing bins over the averaging region.…”
Section: Definitionsmentioning
confidence: 99%
“…This model is common in micro-cellular urban and suburban land-mobile systems, pico-cellular indoor, satellite and ship-to-ship radio links (Bultitude et al, 1989;Munro, 1963;Rappaport & McGillem, 1989;Shaft, 1974). The probability distribution for the envelope of the received signal is given by:…”
Section: The Rice Fading Modelmentioning
confidence: 99%
“…For p = p and in situations when convergence is poor (the region of poor convergence which will be specified later) an approximate identity can.be formulated. However this approximate formulation is much less efiicient than the expansion given by (28). Using a Gaussian quadrature numerical integration applied to the exact image representation, / can be approximated as a finite summation of the form that resembles the method of complex images, i.e.,…”
Section: ^Ikormentioning
confidence: 99%