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

WINNER D5.4 v. 1.4
5.4.12.5 Scenario D1
The CDF of the cross-polarization ratio (XPR) at 100 MHz bandwidth and 5.25 GHz centre-frequency in
a rural environment is shown in the Figure 5.69. The corresponding percentiles are listed in the Table
5.44.
Table 5.44: Percentiles of the cross-polarization ratios in a D1 rural environment.
D1 rural
direct path
(LOS)
scattered paths
(NLOS)
10% 1.7 3.7
XPR V 50% 12.2 6.3
90% 20.7 9.2
mean / std 11.7 / 7.8 6.4 / 2.2
XPR H
10% 3.2 3.2
50% 13.5 6.1
90% 23.3 9.1
mean / std 13.2 6.1 / 2.3
Figure 5.69: CDFs for the XPR V and XPR H for 5.25 GHz.
5.4.13 Large-scale parameter analysis item
In Section 3.1, the model for the so-called large-scale parameters are introduced. In the following
subsections the required parameters are estimated for scenario A1 LOS/NLOS, B1 LOS/NLOS, B3
LOS/NOS, C1 LOS/NLOS, C2 NLOS and D1 LOS/NLOS. In all cases except A1, the vector of bulk
parameters s( x, y)
has four dimensions corresponding to the delay-spread, AoD spread, AoA spread and
log-normal shadowing. In A1, it has the additional dimension of AoD elevation spread and AoA elevation
spread. The required parameters are the vector of transformation functions ~ s ( x , y)
= g( s( x,
y)
), which
s x, y into a vector ~ s ( x, y)
of four Gaussian random variables. The mean
transfoRMS the bulk vector ( )
µ and correlation R( 0)
of the transformed random variable, and the decorrelation distance parameters
λ , K λ determine the variation of the large-scale vector over the cell area through the equations
1
,
4
2
E { ( x , y ) s( x y )} = R( ∆r)
( ) ( ) 2
R
s
1 1 2,
2
⎛
⎜
⎝
⎛
⎜
⎝
∆ r = x
(5.27)
2 − x1
+ y2
− y1
∆r
⎞ ⎛ ∆r
⎞⎞
⎟
K
⎜ ⎟⎟
, (*) (5.28)
λ1
⎠ ⎝ λm
⎠⎠
0.5
0.5,T
( ∆r) = R ( 0) diag⎜exp⎜−
⎟,
,exp⎜−
⎟⎟R
( 0)
0.5
T 0.5
5
where R ( 0)
is obtained from the eigendecomposition R( 0) = EΛE
as ( 0) = EΛ
0.
R .
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