Basic Information on Wireless LAN Communication
Operating Instructions SCALANCE W78x
16
nnel,
nd
ints
lls.
performance. As a result, neighboring
cells each have their own medium and the delays resulting from time-offset
transmission no longer occur.
Channel spacing should be as large as possible; a practical value would be 25
MHz. Even in a multichannel configuration, all SCALANCE W78x access points
can be configured with the same network name.
Multichannel Configuration
If neighboring SCALANCE W78x access points use the same frequency cha
the response times are longer due to the collisions that occur. If the configuration
shown in Figure 1-4 is implemented as a single-channel system, computers A a
B cannot communicate at the same time with the SCALANCE W78x access po
in their ce
If neighboring SCALANCE W78x access points are set up for different frequencies,
this leads to a considerable improvement in
1
1
7
7
A
B
Figure 1-4 Multichannel Configuration on Channels 1 and 7 with four
SCALANCE W78x Access Points
C79000-G8976-C184-07
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