What is BLUETOOTH wireless technology?BLUETOOTH wireless technology is a short-range wireless technology that enables wireless data communication between digital devices, such as a computer and digital camera. BLUETOOTH wireless technology operates within a range of about 10 m (30 feet). Show Connecting two devices as necessary is common, but some devices can be connected to multiple devices at the same time. You do not need to use a cable for connection, nor is it necessary for the devices to face one another, such is the case with infrared technology. For example, you can use such a device in a bag or pocket. BLUETOOTH standard is an international standard supported by thousands of companies all over the world, and employed by various companies worldwide. Communication system and compatible BLUETOOTH profiles of the unitProfile is standardization of the function for each BLUETOOTH device specification. The unit supports the following BLUETOOTH version and profiles: Communication system: BLUETOOTH Specification Ver. 3.0 Compatible BLUETOOTH profiles:
Maximum communication rangeUse the devices within a range of about 10 m (30 feet) of line of sight. Maximum communication range may shorten under the following conditions.
Interference from other devicesBecause BLUETOOTH devices and Wi-Fi (IEEE802.11b/g) use the same frequency, microwave interference may occur and resulting in communication speed deterioration, noise, or invalid connection if this unit is used near a Wi-Fi device. In such a case, perform the following.
Interference to other devicesMicrowaves emitting from a BLUETOOTH device may affect the operation of electronic medical devices. Turn off this unit and other BLUETOOTH devices in the following locations, as it may cause an accident.
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Bluetooth wireless technology is a short range communications technology intended to replace the cables connecting portable unit and maintaining high levels of security. Bluetooth technology is based on Ad-hoc technology also known as Ad-hoc Pico nets, which is a local area network with a very limited coverage. History of BluetoothWLAN technology enables device connectivity to infrastructure based services through a wireless carrier provider. The need for personal devices to communicate wirelessly with one another without an established infrastructure has led to the emergence of Personal Area Networks (PANs).
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 give examples of its use?Bluetooth is a computing and telecommunications industry specification that describes how devices can communicate with each other. Devices that use Bluetooth include computers, a computer keyboard and mouse, personal digital assistants, and smartphones.
What is Bluetooth wireless communication?What is Bluetooth? Bluetooth technology allows devices to communicate with each other without cables or wires. Bluetooth relies on short-range radio frequency, and any device that incorporates the technology can communicate as long as it is within the required distance.
What are uses of Bluetooth communication?Bluetooth is used for short-range communications between device peers, as well as device to peripheral. The number and variety of peripherals which communicate via Bluetooth is immense—wireless headsets for hands-free cell phone use, keyboards, mice, videogame controllers, audio speakers, you name it.
What is wireless communication example?Types of Wireless Communication
Some of these terms may be familiar to you: radio and television broadcasting, radar communication, cellular communication, global position systems (GPS), WiFi, Bluetooth and radio frequency identification are all examples of “wireless”, with wildly different uses in some cases.
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