How to achieve an efficient channel multiplexing of dense microcells deployment? There are few methods:
• Control the transmit power of the AP on a minimum level, as long as AP transmit power can cover
the size of the planned cell.
• Turn off low data rates support, that is turning off 1, 2, 5.5, 11Mbps (without 802.11b) data rates. In
a scenario where it is particularly necessary to control the size of the coverage cell, in addition to
turning off the 802.11b rate, the number of 11ag management frames is limited to a minimum of 18
Mbps (or even 24 Mbps). It is actually limiting the AP's cell size by controlling the lowest data
connection rate (this feature will be supported in GWN future version).
It should be noted that this feature will affect the connection efficiency of clients from a distance away of
the AP. This should only be considered when deploying the network at a high-density case without far
distance connection requirement. Generally, the Wi-Fi network does not need to do this.
• In some specific scenarios, we can use buildings (eg, concrete thick walls, elevator shafts, pillars,
or natural partitions such as large landscapes) to control the main lobe energy radiation of the
wireless channel and let unintended direction of the target's wireless energy attenuates rapidly, in
order to complete the efficient multiplexing of the channel, prevent the omnidirectional antenna
from spreading the signal everywhere, and reduce the possibility of co-channel interference.
Second Step: Improve the Air Interface Efficiency in a Single Channel Coverage Cell
To improve the efficiency of the air interface is actually to establish a higher data rate connection between
the client and AP.
The client does not always establish the highest data connection rate anywhere within the coverage cell.
Since 802.11 protocol dynamically adjusts the data rate established between client and AP to adapt the
changing wireless environment. The farther the client is away from the AP, the lower the data rate can be
established. Modulation mode always considers redundancy prior to performance.
Therefore, the most important thing for this case is to examine the location and behavior of target clients,
and plan a reasonable AP installation place, so that clients can get as close as possible to the AP.
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