Bluetooth

Bluetooth PowerPoint PPT Presentation


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Characteristics. Operates in the 2.4 GHz range, using Short rangeUp to 10 mAsynchronous (data) and synchronous (voice) service availableBluetooth 1.2Up to 721 kbit/s (with signaling 1 Mbit/s)Bluetooth 2.0 EDR (Enhanced Data Rate), 2004Up to 2.1 Mbit/s (with signaling 3 Mbit/s)Bluetooth 2.1

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Bluetooth

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1. Bluetooth

2. Characteristics Operates in the 2.4 GHz range, using Short range Up to 10 m Asynchronous (data) and synchronous (voice) service available Bluetooth 1.2 Up to 721 kbit/s (with signaling 1 Mbit/s) Bluetooth 2.0 + EDR (Enhanced Data Rate), 2004 Up to 2.1 Mbit/s (with signaling 3 Mbit/s) Bluetooth 2.1 + EDR (Enhanced Data Rate), 2007

3. Bluetooth Radio FHSS (2.402 GHz - 2.480 GHz; 79 channels) Fast FHSS (1600 hops/s) GFSK modulation, 1M Symbol/s 2 FSK modulation yields 432 kbit/s bidirectional / 721 kbit/s asymmetrical EDR, QPSK or 8PSK modulations

4. Piconets Nodes can assume the role of master or slave One or more slaves can connect to a master, forming a piconet The master sets the hopping pattern for the piconet, and all slaves must synchronize to that pattern Maximum of 7 slaves controlled by a master (3-bit addresses used) Other operational states Parked: device does not participate in the piconet, but is known to the master and can be quickly reactivated Standby: device does not participate in the piconet

5. Piconet

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