The problem with wireless Local Area Network(WLAN) is SECURITY. So wat is the best possible solution for this.
1. Radius Authentication
2. WPA
3. Strong encryption Algorithm.

According to my knowledge the best possible way to prevent hackers from wireless LAN is adding more security, may be we can try VPN, with basic authentication with 802.1x support. But even still the wireless community is never safe from access.

The only advantage of WLAN is easy deployment with out any wired hassle. :)

But now there are improvements in wireless with 2 level encryption
1. between the client and the Base
2. between the base and a separate authentication server.

The first level is not secure enough still but the security can be increased with the usage of strong encryption algorithm like TKIP etc.
The second level is completly wired hence wireless hacking possibility is less. But security can be ensured if VPN is used from the client (user) to the Authentication server

Comments welcome!