Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point 디자인 가이드
44
Cisco Aironet 1520, 1130, 1240 Series Wireless Mesh Access Points, Design and Deployment Guide, Release 6.0
OL-20213-01
Site Preparation and Planning
•
For 2.4-GHz, the local access cell size radius is 600 feet. One cell size comes out to be 1.310 x 10
6
,
so the there are 25 cells per square mile. (See
and
.)
Figure 25
Cell Radius of 1000 Feet and Access Point Placement for Non-Voice Mesh Networks
Figure 26
Path Loss Exponent 2.3 to 2.7
148463
1000 feet
(typical distance)
(typical distance)
One square mile, 9 cells
148464
Path Loss exponent 2.3 to 2.7
802.11a building to street light coverage
5000
4000
3000
2000
1000
0
Distance (f
eet)
d(PL, 2.3, 5.8
.
10
9
)
d(PL, 2.5, 5.8
.
10
9
)
d(PL, 2.7, 5.8
.
10
9
)
100
105 110
115
120 125
130 135 140
PL
Pathloss/Link Budget (dB)
Pathloss Exp = 2.3
Pathloss Exp = 2.5
Pathloss Exp = 2.7
Pathloss Exp = 2.5
Pathloss Exp = 2.7
Link Budget Window
123~130 dB