Final report on link level and system level channel models - Winner

WINNER D5.4 v. 1.4
5.5.1.4 Spatio-temporal correlation properties
Reference [EGT+99] is about the spatio-temporal correlation properties for 5.2 GHz indoor propagation
environments. The RF bandwidth is 120 MHz. The definitions of the RMS delay spread and RMS
azimuth angle-spread are the same as in D5.3. The heights of both antennas were 1.8, and 2.5 m,
respectively.
The measurements were performed in a large room (OFF), and entrance foyer (FOY), and two corridors
(corr1 was a new building, and corr2 was an old building). The linear relationship between RMS AS and
DS was found in OFF-LOS case,
τ 0.84*
φ −1.6
(ns) (5.29)
RMS
=
RMS
In some other cases, the relationships cannot be fitted into linear. However, the spatio-temporal
correlation coefficient can be found in the following table.
It can be seen that in all LOS cases, DS and AS have good correlations, however, in all NLOS cases, the
correlation coefficients are quite small.
In reference [MRA93], the cluster AoAs were found to follow Gaussian distribution, and the cluster timeof-arrivals
(TOA) were found to be exponentially distributed.
Page 114 (167)