A low powered, high speed wireless link designed to connect portable electronic devices or phones, Bluetooth is a great way to help users connect without knowing anything about creating networks. Bluetooth doesn’t require line of site to work, unlike its main competitor infrared wireless connections.

Prototype circuits are currently being developed to fit a board less than a square centimeter. Even smaller circuit boards are under development. Their small size makes it easy to integrate Bluetooth chips into most portable devices, adding the capability with little trouble in making the board fit in phones, mice, and other devices.

When a Bluetooth enabled device is near another, both devices will automatically begin exchanging details of capability, compatibility, and addresses. Once they’ve connected, the devices create a 1 megabit link with security unique to the devices to protect users’ information. The security is used when required, and the connection created utilizes protocols to transfer both voice and data with a remarkably flexible topography.

Transceivers are embedded into devices in order to establish these connections. The transceivers are small and non-expensive short range apparatuses. And the radios they operate on are on the 2.45 GHz frequency band. They can support up to 721 Kbps of data transfer along with three channels for voice.

Every single device enabled with Bluetooth technology has a unique 48 bit address using the IEEE 802 standard, which regulates wireless connections. Each of the connections is multipoint or point to point. The maximum range is 10 meters for most devices, but by adding additional power, the range can be extended to up to 100 meters. Bluetooth-enabled devices are protected from radio interference by changing frequency often through a process known as frequency hopping.

Bluetooth devices do not drain battery life from devices using the technology. Bluetooth specifications target the power consumption of each device, putting a limit on how much the battery can be drained. When set in stand-by mode, the chip will only use 0.3mA of power. Standard phones use about 95% more than that.

Bluetooth enables security at the bit level, which is a remarkable level of security. Authentication is controlled by each user with a 128-bit key to help keep things safe. Radio signals can then be encoded into anything up to 128 bits for extra security. Bluetooth is hard to listen to due to the frequency hopping anyway, but this security helps maintain peace of mind in a treacherous world of selling secrets.

A combination of packet and circuit switches, the baseband protocol allows slots to be reserved for packets that are synchronous as opposed to asynchronous only. Packets will be transmitted in different frequency as the Bluetooth device hops from one to another. Though packets generally just cover a single slot, it is possible to extend that reach to cover five slots.

Data channels and three simultaneous voice channels are able to be supported by Bluetooth. This wonderful technology enables the user to talk while transferring data. Individual voice channels support 64 KB.

Bluetooth is a remarkably unique method of wireless communication from a technical standpoint. It surpasses infrared easily, standing out as the best global wireless method. Bluetooth is a standard of communications others will have difficulty competing with.

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