Fatma kalid al-makanji

Bluetooth Technology

Bluetooth Definition Is a radio waves and the Charter (Protocol) connections designed for the consumption of small amounts of energy Albulotwoot covers a geographical area stretching from one meter to a100 meter per cent, depending on the nature of the device transmitter and receiver .

History Since 1980, vigorous attempts were made to establish links between various devices by wire-style and a new way based on wireless connectivity. All these attempts were facing many difficulties, summed up in the (additional consumption of electricity, along with Icoic winning device connected to each other. The biggest problem is lack of standards and firm foundations and agreed by all.

Advantage of Bluetooth technology and its structure : Bluetooth wireless technology is a short-range communications system, designed to replace the cables to connect electronic devices nearby portable or installed. The advantage of Bluetooth wireless technology is the intensity, low-capacity and cost of a few. Bluetooth system consists of the basic transmitter and receiver and a protocol stack. This system offers many services that enable communication between devices, and the exchange of rows of data between these devices.

Bluetooth security in each Bluetooth device, there are four entities used to maintain security, namely: 1 - Bluetooth device address (BD ADDR), which is the address of the author of a 48-bit unique for each device Bluetooth, and designated by the Assembly of Electrical and Electronics Engineers (IEEE). 2 - Key Aloabedoip on a 128-bit random, and uses this key for the purposes of Aloabedoip. 3 - private encryption key length of 8-128 bits which is used for encryption. 4 - a random number consisting of 128-bit random number identifies the Bluetooth device itself.

Configure the Bluetooth Personal Area by Network When Bluetooth devices converge to each other, the talk will be email to see if there is data to share or if the first device to control the second device. This all takes place without the need to press any button or making any order on this topic, email will be done automatically. When contact between the two devices, it is configured for a particular network between the two devices. The systems then create a Bluetooth Personal Area Network may extend to an entire room or stretch to a meter or less. When the network is configured personal computers carrying out the change the frequency one way and at one time so as not to overlap with the other personal networks that may be present in the same place.

Advantages Bluetooth Devices are wireless Bluetooth Tech is inexpensive Bluetooth is automatic Standardized Protocol

Advantages Low Interference Low Energy Consumption Share Voice and Data Endless applications…

Disadvantages Low Data Transfer Rate Range – 30ft Mediocre Security 721 Kbps Range – 30ft Mediocre Security Blue jacking Blue bugging

Where is it used? Wireless Control & Communication Data Transmission Cordless Desktop PC Mobile Gaming

The Future 05/2005 – Announced To Team Up With UWB Developers (~480mbits/s) Estimated 2 Billion Devices Shipped Per Year By 2010

sources ^ How Bluetooth Technology Works. Bluetooth SIG. 2009-12-09. ^ Bluetooth Security. Helsinki University of Technology 9 .2009-12-

Questions any Questions?

Thank You !