How is Bluetooth different/similar to HomeRF SWAP, IEEE 802.11, and IrDA?
Bluetooth is similar to many other specifications in the way that it actually borrows many of its features from other specifications. The IEEE 802.11 specification uses the 2.4GHz band and is used to enable wireless LAN connectivity. IrDA is a wireless specification that uses Infrared light to connect devices and has many Object Exchange specifications associated with it. Bluetooth borrows from those specifications to enable file sharing and data transfers between devices. HomeRF SWAP is a specification aimed at small networks of devices for the home environment such as several wireless phone handsets useing the same base station for land line access.