WLAN PLANNING AND DEPLOYMENT
The Importance of Planning
With the tremendous growth of WiFi clients and mobile Internet applications, wireless LANs have evolved
from pursuit of connectivity and coverage to the goal of high-capacity access.
High capacity is meant to support as many wireless clients as possible, and guarantees the experience of
its key business applications. This is not easy to do.
The process of wireless network deployment as planning → construction deployment → network
optimization → operation and maintenance is very different from our previous experience on the wired
network. In the actual deployment, there is such a typical case:
Figure 1 is a floor plan of an Internet company (totally they have 3 floors), each floor has about 100
workstations, each station uses 2-3 terminals, including smart phones, APP tests and office laptops, etc.
By conservatively estimation, there could be 250 terminals per layer.
The company requires wireless deployment for all office phone and laptops, and requires seamless
roaming. In order to achieve the strongest signal coverage, the administrator deployed access points with
full coverage of all workstations (shown by red dots), and added access point installation for outdoor
terraces, elevator halls and corridor (shown by blue dots).
As the result, Wi-Fi signal strength can be detected with over -50dBm at any location on this single floor.
Figure 1: Positions of Access Points deployed on the Floor Plan