The centerpiece or “core” of a wireless home network is either a wireless router or wireless access point:
Wireless routers allow the flexibility to move computers within the home without having to re-cable them. Wireless routers also supply good performance on shared Internet connections. Wireless routers tend to cost more than wired routers, but when cost is not a big issue, the mobility of wireless home networks can’t be beat.
Wireless access points allow wireless computers to network with each other and also connect to an existing wired network. Access points are sometimes cheaper than routers and make the most sense when adding wireless computers to an existing wired network that already has a broadband router.