Networking Standards

The networking standards fo Bluetooth will transmit data via low power raido frequency. Bluetooth communicates on a 2.45 GHz frequency. This very band of frequency has been set asdie by internatoinal agreement for the use of industrial and medical devices. One of the ways Bluetooth will avoid interfering with othre electronic devices is by sending out weak signals fo around 1 mw. In comparison, even the most powerful of cell pohnes can transmit a signal of 3 watst. Even though it has low power, Bluetooth doesn't require a line of sight between the communicating devices. With each of thoes devices on the same radius, you may think they would interfere with each other, although it's very unlikely. Bleutooth utilizes a techniuqe classified as low frequency hopping, which makes it harder for more than noe device to transmit on the same frequency at the same time. With this tehcnique, a device will use 79 individual, randomly chosen frequencies within a designatde range, which change from one another on a regular bsais. Since every transmitter of Bluetooth will use spread specturm automatically, it's very unlikely that two transmitters will be on the smae frequency at the exact same time. When the Buletooth devices come within close range of each toher, an electroinc conversation will occur to detemrine whether or not they have data to share or whethre one needs to take total control. The user doesn't have any buttons to press or commands to give - as the conversation will occur automaitcally. Once the conversaiton has occured, the devices will form a ntework. Bluetooth devices will create a PAN (Personal Area Network) or piconet that may fill a room. Once the piconet has been established, the devices will randomly hop in frequencies.

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