23-08-2015, 05:30 PM
i want full report on Development of an Embedded Systems for Secure Wireless Data Communication with ppt and pdf
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development of an es for secure wireless data communication full seminr report slideshare
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i want full report on Development of an Embedded Systems for Secure Wireless Data Communication with ppt and pdf
14-03-2017, 01:04 PM
With the advancement of technology day by day our lifestyle is becoming simpler - for example, wireless communication through which we can send or receive data from far distances to our hands with a mobile phone. Wireless data communication is defined as the transfer of data over a distance without the use of any improved wire or cable. The distance can be short or long depending on the requirements and accessibility.
Different wireless data communications
Wireless data communications include different technologies such as IR, RF, GSM, WI-FI, ZIGBEE, BLUETOOTH and RFID technologies. We will go through all these different technologies.
1. IR technology: A wireless communication that communicates data or information to devices through the IR wireless communication mode, which is used to communicate short- and medium-range distances and security control areas. The infrared is also used in remote TV controls and security systems.
2. WI-FI Technology: Wireless fidelity refers to IEEE 802.11 communication standards for wireless LANs. This network also connects computers, the Internet and wired networks. WI-FI works on physical systems and data layers. An electronic device can be connected to the Internet wirelessly at frequencies of 2.4 GHz UHF and 5 GHz SHF radio waves. The main resolution of WI-FI is to hide complexity by allowing wireless access to applications, data, media and currents. This network can be applied in different areas such as home, health care, business and tours and travel. Many devices use WI-FI, such as personal computers, digital audio players and smartphones.
3. RFID Technology: RFID or Radio Frequency Identification System is a technology-based identification system that helps identify objects only through the labels attached to them, without the need for any line of sight between the labels and the tag reader . All that is needed is radio communication between the label and the reader. RFID can be used in a variety of applications such as general public and animal tracking, toll collection and tracking of non-contact payments, airport baggage tracking, logistics and access management tracking.
4. Zigbee Technology: Zigbee is a wireless technology designed to address unique needs such as affordability and energy conservation. It's easy to deploy and needs little power to run. Zigbee operates at 2.4 GHz radio frequency, which is used to deliver reliable information and easy to use standards worldwide.
5. GSM Technology: GSM technology stands for Global System for Mobiles and its foundation can be accredited to Bell Laboratories in 1970. It basically uses the circuit-switched system and divides each 200 KHz signal into 8 time slots of 25 KHz and Operates at 900 MHz, 800 MHz and 1.8 GHz, respectively. It uses a narrow band transmission technique - basically Time Division Access Multiplexing. Data transfer speeds range from 64kbps to 120kbps.
6. Bluetooth Technology: A Bluetooth technology is a low-power, high-speed wireless technology link designed to connect phones or other portable devices together. It is a specification (IEEE 802.15.1) for the use of low-power radio communications to connect telephones, computers and other short-range wireless devices. Wireless signals transmitted over Bluetooth cover short distances, typically up to 30 feet (10 meters).
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