Definition of Bluetooth Transmission
Bluetooth is a technology that has become popular due to being incorporated in most modern mobile phones, thus becoming part of everyday use. The purpose of this groundbreaking technology is to replace cables with radio transmissions using the 2.4GHz unlicensed ISM (industrial, scientific and medical) band in a device capable of receiving Bluetooth signals. It is widely used for wireless networking of different devices and peripherals.
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History
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The technology that was originally developed in 1994 by the Swedish company Ericsson takes its name from the Danish Viking King Harald who had the nickname Blåtand (or blue-toothed). In February 1998, a group of 2,000 companies, known as the Bluetooth Special Interest Group was formed and included names such as Ericsson, Microsoft, Intel, Nokia, Toshiba and Motorola. This group published specifications for Bluetooth 1.0 in 1999.
Characteristics
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Bluetooth is a low-range transmission technology that could transfer voice or data using little power input. Using full duplex mode, Bluetooth can transfer data with speeds up to 1 megabyte per second (mbps). That Bluetooth devices do not require a clear line of sight to interact with each other makes it superior to its competitor, the Infrared Data Association (IrDA) technology, which depends on light radiation to transfer data.
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Flexibility
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The ability of Bluetooth-capable devices to communicate without being physically present in a single room makes the technology user friendly and appealing. Even though the technology still only caters to room-to-room communication needs (covering ranges from 10 to just less than 100 meters), it provides immense peace of mind and relief to its user by eliminating the need for wires to interconnect devices such as computers, cell phones, PDAs, keyboards and mouses, wireless headsets, printers and home appliances.
Reliability
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The Bluetooth connection once established between two devices, is not easily disturbed as the robust link this technology provides ensures smooth operational circumstances free from interference interruptions by signals from other devices that might be using the same frequency band for operations. The 2.4GHz band used by the Bluetooth technology to work is unlicensed, which means it can be used anywhere in the world by any radio system, making Bluetooth a truly global technology.
Security
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As with all data-transfer technologies, security is important in the Bluetooth world. Several security features can be implemented to make a Bluetooth connection safe and risk free. The manufacturer could determine various security levels and modes in a Bluetooth device such as secure, service level security and link-level enforced security. Apart from that, authentication and authorization are ways to ensure a secure link between the devices.
Future
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Bluetooth technology has already taken the world by storm, but this technology is all set for a major take off. New ideas are constantly being generated about how this technology would shape the future of our daily communication needs and huge investments by major players such as Microsoft, Intel and Nokia have already been made. In the future, Bluetooth may be used for cordless handsets at home and offices where a base station for Internet connectivity can be established. Data transfer at much higher speeds also will be made available.
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