Copied from the intertubes:
wireless network adapters.
wireless access points.
add-on wireless antennas.
wireless signal boosters.
Each computer WLAN must possess a wireless network adapter. Wireless adapters are sometimes also called NICs.
Home net-workers typically install an access point when they already own a broadband router and want to add wireless computers to their current setup. You must use either an access point or a wireless router.
One wireless router supports one WLAN. Use a wireless router on your network if:
you are building your first home network, or.
you want to re-build your home network to be all-wireless, or.
you want to keep your WLAN installation as simple as possible
Try to install your wireless router in a central location within the home.
The way Wi-Fi networking works, computers closer to the router (generally in the same room or in "line of sight") realize better network speed than computers further away.
If you need dial-up support, be sure to purchase a router having an RS-232 serial port.
Your router and all computers on the WLAN must share the same SSID. Although your router shipped with a default name set by the manufacturer, it's best to change it for security reasons.
set all wireless adapters to use ad hoc mode.
You'll see a separate setting for channel number. All adapters on your ad hoc wireless LAN need matching channel numbers.
All devices connecting via ad hoc wireless must possess a working Wi-Fi network adapter. These adapters must be configured for "ad hoc" mode instead of the more typical "infrastructure" mode.
How to build a wireless net work.http://compnetworking.about.com/cs/wire ... ldwlan.htm
PS if this is not what yer lookin for let us know.
And don't forget to put one of these in the ceiling.