STATISTICAL MODELING AND SIMULATION OF THE RMS DELAY SPREAD OF INDOORRADIO PROPAGATION CHANNELS

Using a large empirical data base of 12000 impulse response estimates collected in two office buildings the root mean square (rms) delay spr ead for the individual impulse responses have been calculated and anal yzed. Statistical modeling of tau(rms) includes investigation of the l ocal and global distributions, correlations in space, dependence on tr ansmitter-receiver antenna separation, correlations with large scale p ath losses, and dependence on the dynamic range of measurements. Using the results of the statistical analysis, a simulation model capable o f generating a set of tau(rms) values for spatially-adjacent points ha s been developed.