What is Bluetooth | Bluetooth advantages and disadvantages

What is Bluetooth?

Bluetooth is the wireless communication method used when you copy the song stored on your friend's mobile to your mobile. Bluetooth is a wireless personal area network (WPAN) protocol that allows almost all modern devices to exchange data privately over short distances at no cost.

The network created through Bluetooth technology is called Piconet. That is, the network or Wireless Personal Area Network (WPAN) created to exchange information between the devices used by a person located at a short distance is called a piconet.
Also if two side-by-side piconets are connected through a common slave node then these two piconets together are called scattered. Bluetooth is considered a popular way to connect mobile phones, laptops, computers, printers, digital cameras, and video game consoles to each other and exchange data.

Features of Bluetooth?

  • Bluetooth works at a 2.45 GHz frequency. In this technology, information can be shared between up to 8 devices under a pico-net.
  • Bluetooth can configure automatically. Bluetooth is widely used for data transfer, usually from mobile to mobile, digital camera to laptop.
  • Very slow data transfer.  Between 0.72-25 Mbps.
  • Bluetooth has only one IEEE standard.
  • Namely: 802.15.
  • The coverage area of ​​Bluetooth is up to 10 meters (in some cases 100 meters).

History of Bluetooth?

Telecom vendor company Ericsson invented Bluetooth in 1994. Bluetooth is named after King Harald Bluetooth of Denmark (Harald Bluetooth AD 940-985).

How does Bluetooth work?

When the Bluetooth option is enabled between two wireless devices located at a short distance, the two devices can automatically communicate with each other. Nowadays, devices such as laptops, tablets, PCs, PDAs, mobile phones, etc. have Bluetooth built-in.

How does Bluetooth work?

This technology is used on desktop computers with the help of a USB Bluetooth adapter. It is a popular communication protocol for portable and mobile devices.

IEEE standard of different devices?

  • Hub, Switch, Router= IEEE 802.3
  • Token Ring= IEEE 802.5
  • LAN Cabling= IEEE 802.7
  • Fiber Optic connection= IEEE 802.8
  • Zigbee= IEEE 802.15.4
  • WiMAX= IEEE 802.16
  • Wifi= IEEE 802.11
  • Cable Modem= IEEE 802.14
  • Bluetooth= IEEE 802.15

What benefits of Bluetooth?

  • Usable in static and moving environments.
  • It is an economical wireless protocol or technology for short-distance data and voice transmission.
  • A piconet contains 255 slave nodes in total. However, communication with eight slaves is preserved and the remaining nodes are idle.
  • It uses short wavelength (UHF-Ultra High Frequency) radio waves.
  • No setup is required, automatically configurable.
  • Bluetooth is a packet-based technology that has a master-slave design.
  • Transmits signals at 2.4 GHz frequency.  Its bandwidth is 1 Mbps.
  • Bluetooth is used to transfer data between two nearby devices.

Disadvantages of Bluetooth?

  • It is very easy for unauthorized persons to gain access to the network.
  • More than two devices cannot connect successfully at a given time.
  • There is a risk of data theft if the mobile phone has Bluetooth active.
  • Bluetooth internet speed is very low.
  • If the Bluetooth option is turned on in the mobile phone, the battery charge may be consumed.
  • The data transfer rate is relatively low.

Use of Bluetooth?

  • Through the use of a hands-free headset connected to the phone through Bluetooth, sound or voice data can be transferred.
  • Other devices can be connected to the computer and data can be exchanged easily.
  • Bluetooth is used in GPS receivers, medical equipment, barcode scanners, and traffic control devices.
  • Bluetooth is used in space control where infrared is often used.
  • Files can be transferred from a phone to a computer using this technology.
  • Bluetooth is used for wireless communication with PC's input and output devices. 
Post a Comment (0)
Previous Post Next Post