Abstract
Bluetooth is the name for an emerging technology that uses short-range radio links instead of cables to connect portable electronic devices. This allows a wide range of devices to communicate with one another without actually being physically connected to one another.
Some of the most notable features of Bluetooth technology are the facts that it is relatively inexpensive (this is first and foremost for many potential consumers); it is not extremely fragile, it is very user friendly, and has low power consumption. Bluetooth can be used to create wireless Personal Access Networks (PANs) while offering fast and reliable transmission of both voice and data. Bluetooth offers wireless access to the Internet (for home access as well as laptops, PDAs, and other hand held devices), cell phone services, and local access networks.
A complete Bluetooth system requires an RF portion in order to send or receive data; a module for processing, a memory module, and an interface to the electronic device it is to communicate with (such as a phone, Palm, or camera).
The lower-layer protocols can typically be found within the baseband module and the host processor must support the protocols of the upper-layer. Simply put, the RF-baseband solution supplies the means necessary in order to communicate with the host. This additionally requires an interface by which they can connect as well as the 'upper-layer' protocols in order to actually apply the applications the product is designed to support.
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