WINNER II pdf - Final Report - Cept

WINNER II D1.1.2 V1.1
6.12 Fixed feeder links - Scenario B5
For the stationary feeder scenarios only CDL models have been created. The CDL models are based on
the parameters in the tables below which are derived mostly from literature. Note that the CDL models
only approximate the selected parameters. Basically any antenna pattern can be used with the models
However, for the B5 scenario at distances larger than 300 meters the 3 dB beamwidth γ 3dB of one of the
link ends should be smaller than 10 degrees while the other is smaller than 53 degrees.
6.12.1 Scenario B5a
The clustered delay-line model for the rooftop to rooftop case is given in table below. In stationary
scenarios, i.e. B5, the Doppler shifts of the rays are not a function of the AoAs. Instead, they are obtained
from the movement of the scatterers. In B5 we let one scatterer per cluster be moving while the others are
stationary. The Doppler frequency of the moving scatterers is also included in tables below.
Table 6-18 Parameters selected for scenario B5a LOS stationary feeder: rooftop to rooftop.
Parameter
Power-delay profile
Delay-spread
K-factor
XPR
Doppler
Angle-spread of non-direct components.
Value
Exponential (non-direct paths).
40ns
10dB
30dB
A peak centreed around zero Hz with most energy within
0.1 Hz.
Gaussian distributed clusters with 0.5 degrees intra anglespread.
Composite angle-spread 2 degrees. Same in both
ends.
Table 6-19 LOS Clustered Delay-Line model. Rooftop-to-rooftop.
cluster #
delay
[ns]
Power
[dB]
AoD [º] AoA [º]
Freq. of
one
scatterer
mHz
K-factor
[dB]
XPR = 30dB, MS speed N/A
1 0 -0.39 0.0 0.0 41.6 21.8 -0.42 * -35.2 **
2 10 -20.6 0.9 0.2 -21.5 -33.61
3 20 -26.8 0.3 1.5 -65.2 -39.81
4 50 -24.2 -0.3 2.0 76.2 -37.21
5 90 -15.3 3.9 0.0 10.5 -28.31
6 95 -20.5 -0.8 3.6 -20.2 -33.51
7 100 -28.0 4.2 -0.7 1.3 -41.01
8 180 -18.8 -1.0 4.0 2.2 -31.81
9 205 -21.6 5.5 -2.0 -15.4 -34.61
10 260 -19.9 7.6 -4.1 48.9
*
**
+
Power of dominant ray,
Power of each other ray
Clusters with high K-factor will have 21 rays.
-∞
Number of rays /cluster = 20 +
Ray Power [dB]
-32.91
cluster AS at MS [º] = 0.5
cluster AS at BS [º] = 0.5
Composite AS at MS [º] = 0.76
Composite AS at BS [º] =1.13
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