Journal ArticleDOI
A Statistical Model for Indoor Multipath Propagation
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The results of indoor multipath propagation measurements using 10 ns, 1.5 GHz, radarlike pulses are presented for a medium-size office building, and a simple statistical multipath model of the indoor radio channel appears to be extendable to other buildings.Abstract:
The results of indoor multipath propagation measurements using 10 ns, 1.5 GHz, radarlike pulses are presented for a medium-size office building. The observed channel was very slowly time varying, with the delay spread extending over a range up to about 200 ns and rms values of up to about 50 ns. The attenuation varied over a 60 dB dynamic range. A simple statistical multipath model of the indoor radio channel is also presented, which fits our measurements well, and more importantly, appears to be extendable to other buildings. With this model, the received signal rays arrive in clusters. The rays have independent uniform phases, and independent Rayleigh amplitudes with variances that decay exponentially with cluster and ray delays. The clusters, and the rays within the cluster, form Poisson arrival processes with different, but fixed, rates. The clusters are formed by the building superstructure, while the individual rays are formed by objects in the vicinities of the transmitter and the receiver.read more
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References
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A Statistical Model for Urban Radio Propogation
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Journal ArticleDOI
A statistical model of urban multipath propagation
TL;DR: An urban multipath propagation experiment, involving the simultaneous transmission from a fixed site of 100-ns pulses at 488, 1280, and 2920 MHz and their reception at a mobile van, is described, and a statistical analysis of the data in the resulting multipath responses is given.
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Delay Doppler characteristics of multipath propagation at 910 MHz in a suburban mobile radio environment
TL;DR: In this paper, small scale statistics of the multipath propagation for vehicle travel distances on the order of 30 m along streets are presented in the following forms: 1) average power-delay profiles made up of over 200 individual profiles, 2) cumulative distributions of signal amplitude at fixed delays, and 3) radio frequency Doppler spectra at fixed delay.
Journal ArticleDOI
800-MHz attenuation measured in and around suburban houses
TL;DR: These measurements are needed in refining the requirements for portable-radio communication systems that can accommodate low-power radiotelephone sets and large-scale distributions of the small-scale signal medians are approximately log normal.
Journal ArticleDOI
Correlation Bandwidth and Delay Spread Multipath Propagation Statistics for 910-MHz Urban Mobile Radio Channels
David Cox,R. Leck +1 more
TL;DR: Distributions of delay spread and correlation bandwidth at 0.9 and 0.5 correlation for Gaussian wide-sense stationary uncorrelated scattering channels associated with 100 small-scale areas at different locations within a 2 × 2.5 km region of New York City are presented.