Wireless access point

When planning a wireless access, two main aspects must be considered:

  • signal range
  • network security.

WiFi (802.11b/g) network elements communicate over 2.4 or 5 GHz and for a robust link, direct visibility between the receiver and the transmitter is required. It is very difficult to plan the signal propagation in buildings, expensive measurements are necessary at most of the sites. The signal is attenuated by concrete constructions with steel reinforcing, it propagates better through plaster boards.

The main security rule is to limit the signal availability to controllable places only. Use MAC filtration, WEP security encryption, WPA if possible, or another technology (e.g. Radius), where available. Standard Domat specification where always the latest proven solution of a well-known producer is supplied, is DC-NAP.