Page 99 - Integrated Wireless Propagation Models

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r--
Urban area /
hb =200m / 80
hm= 3 m / /
/
60 v / 60
� v /
iD � v
� v � 50
'S 100 ------- v /
:s 50 ��- /
� 80 /' / / 40
<I: v /
c
0 � -- / 30
-� 60 ----v / E'
:::J / 206
��-
c 40 50 -o
Q) /
� � v 10
C1l -1- / /
c 40
C1l v / / 5
'5 - / /
Q) 30 30 / 2
E - --� 1--- /
() 20 ---- �
·u;
C1l -I-- � � /
Ill 10 /
5 � �� /
20 1-- 1---
2 -f-
1
10
100 200 300 500700 1000 2000 3000
Frequency f ( MHz )
FIGURE 2.12.1.1 Basic median path loss relative to free space i n urban areas over quasi­
smooth terra i n .
220 I I
210 r--- Urban area
r--- fc = 900
200 MHz
hm = 1.5 m hb : m
---
190 . · · - 30
f
.
. /f - 50
180 - 70
� -
� � . ./ 100
·
iD 170 - 150
� � � � ::..---:: - 200
::...----
c. 160
-'
. ::=:::::::
rn v · r-- � �
rn 150
..Q � '"""'"
;:;;..
c -� � ...,-o r:: "I-- -�
0 140
� r:.-�---"
� � � � r=---
C) 130
C1l �
c. �
e 120
a.. v----
110
100
90
80
70
60
1 2 3 5 7 10 20 30 40 50
Distance R (km)
FIGURE 2.12.1.2 Propagation loss i n a n urban area with different hb.
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