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In-Depth Information
a
Circular Grid Formation
Counting of points
start from this
point
and it goes in anti-
clockwise direcion
300
Radius of
circles
200
Point-1
100
Point-7
Nodes are
placed
on concentric
circles with
radii 50 metres
apart
Point-19
Point
126
126 points in all.
Points on the
same circle are 50
metres apart.
Radius of circles is in metres from 50m to 300m
Plot showing Shadown
F
ading Loss
b
2
1.5
1
0.5
300
0
200
-0.5
100
-1
0
-1.5
300
200
-2
-100
100
-2.5
0
-200
-100
Distance in metres on y-axis
-3
-200
-300
Distance in metres on x-axis
-300
Fig. 7.3
(
a
) The grid over which the correlated shadow fading is computed and (
b
) the spatially
correlated shadow fading field,
x
σ
(
r
) (note that this is under-sampled due to the large average grid
spacing and is plotted without any smoothing interpolation) with
σ
=
2dB
and
d
=
70m
dB
50%
d
=
100m
(or equivalently
1/
)
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