User's Manual

51
 Radio Optimizing
 Overview
Wireless Network Application Scenario
Generally, wireless networks application scenarios include those with a common user density and
those with a high user density..
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Application scenario with a common user density
In an office, public building, school, warehouse, or hospital, the wireless network must provide
coverage to many users in a large area.
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Application scenario with a high AP density
In a large crowded area with many wireless clients, many APs are deployed to provide coverage
(AP/225~500 M
2
). The common application scenarios with a high AP density include:
− Conference hall, theatre, exhibition hall, and dining hall
− Indoor/outdoor stadium
− College classroom
− Airport and railway station
Performance Optimization Parameters
To cater to different requirements for wireless connection in different application scenarios and help
customers set up optimum wireless services, IP-COM provides a series of performance optimization
parameters.
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5GHZ SSID priority
The 2.4 GHz band is more widely used for wireless coverage than the 5 GHz band. However, the
2.4 GHz band offers only 3 non-overlapping channels. Therefore, the channels are busy, resulting in
great wireless signal interference. Actually, the 5 GHz band can offer more non-overlapping
channels. In China, it offers 9 channels. In Some other countries, it offers more than 20 channels.
An increasing number of users are using wireless clients that work at the 2.4 GHz and 5 GHz bands
at the same time as wireless network development continues. However, a dual-band client often
connects to the 2.4 GHz network by default, increasing the imbalance between the 2.4 GHz network
and 5 GHz network.
The
5GHZ SSID priority feature makes a dual-band client to connect to the 5 GHz network first to
reduce the workload and interference at the 2.4 GHz band for better user experience.