3 zone AP

Hey guys

I am trying to work out a solution and need a hand with the planning.

I need to setup a 2.4GHz AP, the problem is that due to the area i will need to use 3 sectors, with 3 radios on an RB433.

How would you set this up so if you move with a laptop or cell phone from one area to another, it will change over to another sector?

The IP address will also need to stay the same, as there will only be 1 IP range for the clients to use.

Will also need to use WEP or WPA for security.

Any ideas on which direction to start looking?

What about 3-way splitter?

http://www.l-com.com/item.aspx?id=20862

If you use 3 radios, just bridge them to keep the same IP when clients change position and SSID can be the same. Put different frequencies. You can try WDS dynamic and select your predefined bridge in the WDS tab.

This may be usefull:

http://sujianto.files.wordpress.com/2008/05/how-do-i-set-up-wds-using-mikrotik.pdf