Abstract
This paper reports the results of extensive measurements and analysis of the indoor radio propagation channel's temporal and spatial variations. The empirical database for the temporal variation analysis consists of 192 one-minute recordings of CW envelope fading waveforms with both antennas stationary. Measurements were carried out in an office environment at 1100 MHz with four transmitter-receiver antenna separations of 5, 10, 20, and 30 meters. Effects of controlled degrees of motion with 0, 1, 2, 3, or 4 individuals walking around the high antenna only, around the low antenna only, and around both antennas were investigated. The spatial variation analysis is based on 160 segments of 1.5-meter CW envelope fading data obtained from a wideband empirical database of 12000 impulse response functions. The measurements in this category were carried out at two different office environments with four antenna separations of 5, 10, 20, and 30 meters. The reported results include amplitude fading distributions, correlation properties, level crossing rates, duration of fades statistics, and spectrum widths of the frequency domain data.
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