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

WINNER D5.4 v. 1.4
5.5.2 Scenario B3
5.5.2.1 Reference data
The measurement data for the large indoor scenarios were gathered with partly support by the WINNER
project within a new lecture hall at the Technische Universität Ilmenau (TUI /.Germany). Measurement
bandwidth and centre-frequency were selected to be 120 MHz and 5.2 GHz. The BS was mounted at the
height of ~3.8m, whereby the transmit antenna was fixed on an automatic track with a length of 2 m
between the tiers of the lecture hall. Different positions for the transmitter and receiver where measured.
During the measurement LOS was dominating the propagation characteristics. Furthermore
measurements were performed where the LOS was obstructed.
5.5.2.2 Publications
Large indoor environment type MIMO measurements are quite rare. Most of them are not dealing with
the measurement analysis items we are discussing here, but with some phenomena like distribution of the
eigenvalues etc.
In [KHK+01] the indoor picocell SIMO measurements were performed in the transit hall of Helsinki
airport using a spherical array of 32 dual-polarized antenna elements at 2.15 GHz band. Bandwidth was
30 MHz. The centre of the array was at height of 1.7 m above ground level. The omnidirectional BS
antenna was elevated at 4.6 m above the floor level, and located so that the visibility over the hall was
good. The BS-MS distance varied within interval (10, 150) m.
The portion of line-of-sight (LOS) measurements was significant, of the order of 40 %.
The measurement results indicate that the instantaneous cross polarization power ratio (XPR) is lognormally
distributed. The median, mean and the standard deviation of the XPR were found to be 8.8, 8.7
and 5.2 dB respectively.
The median, mean and the standard deviation of the elevation angle are respectively 4.1°/1.9°, 6.0°/3.2°,
and 10.3°/12.2° (VP/HP).
In [JXP01], large hall measurements at the Helsinki airport were performed at 5.3 GHz band. Bandwidth
was 30 MHz. The TX antenna was at 4.55m and the RX antenna was at 1.55 m hight. Distances of up to
200 m were covered.
Figure 5.80: Helsinki airport hall setup
For the LOS case at distances 8-100 m path-loss exponent and mean square error of the path loss are
respectively n = 1.3 and STD = 2.0 dB.
For the NLOS case at distances 35 - 200 m path-loss exponent and mean square error of the path loss are
respectively n = 1.9 and STD = 2.7 dB.
Mean K factor was 1 dB.
Delay spread had values of 120 ns for the LOS case and 180 ns for the NLOS case (90% CDF).
Max excess delay was around 600 ns in the NLOS case and 240 ns in the LOS case.
Spatial correlation function in NLOS situation is shown in the Figure 5.81 and frequency correlation
function in NLOS situation is shown in the Figure 5.87, both for distances less than 30 m.
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