Title :
Statistics of short time and spatial variations measured in wideband indoor radio channels
Author :
Ganesh, R. ; Pahlavan, K.
Author_Institution :
Commun. Res. Lab., David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
8/1/1993 12:00:00 AM
Abstract :
In an indoor environment, channel variations which occur most frequently are due to the movement of personnel near the transmitting or receiving antennas and/or local movements of the terminals around a given location. Such spatial and short time variations in the indoor radio channel are studied and determined by performing wideband propagation experiments in line of sight and nonline of sight environments at 910 MHz. The database is divided into two classes: spatial and short time variations. Spatial variations deal with the changes in the radio channel, observed over a short time and space, at different locations in an environment. The short time variations address changes induced over time, by human traffic close to the fixed transmitter/receiver or by manually shaking the antenna on its base. The statistics of RMS delay spread and the received power in the multipath profiles are computed and compared for these experimental variations
Keywords :
digital radio systems; fading; radiowave propagation; telecommunication channels; 910 MHz; RMS delay spread; UHF; fixed transmitter/receiver; human traffic; indoor radio channels; line of sight environment; multipath profiles; nonline of sight environments; received power; short time variations; spatial variations; statistics; wideband propagation experiments;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
