What is Bluetooth a wireless PAN technology?
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Bluetooth specification details the entire protocol stack. Bluetooth employs Radio Frequency (RF) for communication. It makes use of frequency modulation to generate radio waves in the ISM band. The usage of Bluetooth has widely increased for its special features.
Piconets and ScatternetsBluetooth enabled electronic devices connect and communicate wirelessly through shortrange devices known as Piconets. Bluetooth devices exist in small ad-hoc configurations with the ability to act either as master or slave the specification allows a mechanism for master and slave to switch their roles. Point to point configuration with one master and one slave is the simplest configuration. When more than two Bluetooth devices communicate with one another, this is called a PICONET. A Piconet can contain up to seven slaves clustered around a single master. The device that initializes establishment of the Piconet becomes the master. The master is responsible for transmission control by dividing the network into a series of time slots amongst the network members, as a part of time division multiplexing scheme which is shown below. The features of Piconets are as follows −
SpectrumBluetooth technology operates in the unlicensed industrial, scientific and medical (ISM) band at 2.4 to 2.485 GHZ, using a spread spectrum hopping, full-duplex signal at a nominal rate of 1600 hops/sec. the 2.4 GHZ ISM band is available and unlicensed in most countries. RangeBluetooth operating range depends on the device Class 3 radios have a range of up to 1 meter or 3 feet Class 2 radios are most commonly found in mobile devices have a range of 10 meters or 30 feet Class 1 radios are used primarily in industrial use cases have a range of 100 meters or 300 feet. Data rateBluetooth supports 1Mbps data rate for version 1.2 and 3Mbps data rate for Version 2.0 combined with Error Data Rate. What is Bluetooth PAN used for?In the PAN, the internet connection of one of the devices can be shared with the other device through Bluetooth tethering. Using this Bluetooth technology, you can pair a payment terminal with an Android or iOS tablet or smartphone that functions as a mobile POS system.
What is PAN in wireless communication?A personal area network (PAN) interconnects technology devices, typically within the range of a single user, which is approximately 10 meters or 33 feet.
What is the main purpose of the PAN function?1) Any of a variety of different cooking utensils that are built with a flat bottom and raised sides to hold or prepare food ingredients. Pans are used for numerous food preparation tasks which may require they be heated or cooled while being resistant to breakage and easy to remove contents or clean afterwards.
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