Transcript Network planning and building using Mikrotik

Planning and building WLAN
networks using Mikrotik
RouterBOARDs and WiPlanner
software
Tomasz Reczek
MUM 2008 Kraków
Agenda
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Basics - Antenna systems
Radio Links
Area Networks
EMF safety
Antenna systems - 1
• Long antenna
system
• High attenuation
of antenna
system - uplink
and downlink
• High price of
antenna system
Making measurements
Distance to fault
Signal Loss vs. Antenna/connector VSWR
3.0
Signal Loss [dB]
2.5
2.0
1.5
1.0
0.5
0.0
1
2
3
4
VSWR - antenna/connector
5
6
Reflected power vs. Radio power
VSWR = 1.5, Att = 0.18dB
VSWR = 2.0, Att = 0.51dB
VSWR = 3.0, Att = 1.25dB
VSWR = 4.0, Att = 1.94dB
VSWR = 5.0, Att = 2.55dB
VSWR = 6.0, Att = 3.10dB
550
500
Reflected Power [mW]
450
400
350
300
250
200
150
100
50
0
0
200
400
600
Radio Power [mW]
800
1000
Antenna systems - 2
• Short antenna
system
• Low attenuation
• Lower price of
antenna system
Enclosed antenna 1
Enclosed antenna 2
Area Networks – point to multipoint
Defining Parameters
Results – network coverage
Results – network range
Point to Point connections
Defining Parameters
EMF Safety
•For employees of
WLAN providers
•For environment
(people living around)
•Industrial solution –
safety of employed
people
Polish Legislature
300MHz – 300GHz
7V/m or 0.1W/m2
Safety zones
Thank You