About wifi technology pdf

Wifi direct allows wifi devices to talk to each other without the need for wireless access points wifi direct essentially embeds a software access point, or soft ap, into any device that wishes to support direct. Forrester research, a company that focuses on the business implications of technology change, has reported that in a few short years, up to 95% of devices used to access the internet will be nonpc devices that use an embedded system. Wifi is a high speed internet connection and network connection without use of any cables or wires. Bluetooth technology is useful when transferring information between two or more devices that are near each other when speed is not an issue, such as telephones, printers, modems and headsets. The best is yet to come 20 years since the first wifi standard, the technology is poised for a surge of innovation. It has many advantages such as flexible, responsive, customized, fast, costeffective, secure. Wifi 6e brings a common industry name to identify devices that will offer the features and capabilities of wifi 6, extended to the. Wifi is a family of wireless networking technologies, based on the ieee 802. Wifi technology, what is wifi technology, wireless fidelity. Download the pdf and ppt reports to learn various applications, challenges, and solutions, recent advances in mimo communications.

The name wifi, commercially used at least as early as august 1999, was coined by the brandconsulting firm interbrand. The technology is very new and was proposed by the german physicist harald haas in 2011. Apbased topology infrastructure mode peertopeer topology adhoc mode. Therefore, office restructuring, shifts or expansion can be managed easily. Wifi operation in the 6 ghz frequency band will enable wifi to continue delivering positive experiences for the most bandwidthintensive applications. Wifi is a technology that uses radio waves to provide network connectivity.

Wifi network connect computers to each other, to the internet and to the wired network. In lifi the information is transferred through light signals instead of radio waves and mostly wifi plays an efficient role for wireless information coverage within the buildings whereas by using lifi we can provide the excel density data. Wifi compatible devices can connect to the internet via wlan network and a wireless access point abbreviated as ap. Wireless technology is an alternative to wired technology, which is commonly. The different versions of wifi are specified by various ieee 802. Wifi calling only to fill gaps opportunistically, and especially to address the challenge of good inbuilding penetration. Ppt wifi technology powerpoint presentation free to. Wifi computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections wifi networking either of two different incompatible radiobased lan protocols, namely 802. The wifi alliance claims rights in its uses as a certification mark for equipment certified to 802.

Wifi is currently proving to be a reliable standalone network with multiple applications using radio frequency rf technology, wireless lan transmit and. Content wireless communication standards computer networks reference model for a network architecture frequencies and regulations wireless communication technologies signals bandwidth limited signals signal modulation data transfer rate signal propagation most of the slides of this lecture come from prof. Wifi, also, wifi, wifi or wifi, is a brand originally licensed by the wifi alliance to describe the underlying technology of wireless local area networks wlan based on the ieee 802. With a workplace equipped with wireless lan connectivity, employees can move around the office space without any restrictions arising from cables. Wifi technology wifi is an alternative network to wired network which is commonly used for connecting devices in wireless mode. Wifi, networking technology that uses radio waves to allow highspeed data transfer over short distances. Get the latest ieee documentation for seminar report on wivi technology. Wireless technology in the workplace powers the concept of a mobile workforce. In lifi the information is transferred through light signals instead of radio waves and mostly wifi plays an efficient role for wireless information coverage within the buildings whereas by using lifi we can provide the excel. Conclusion introduction wireless technology is an alternative to wired technology which is commonly used for connecting devices in wireless mode wifi wireless fidelity is a generic.

Not requiring an explicit network of wires and permitting communication while on the move. The future of wireless technology is bright due to it being very cost efficient and very easy to use and the best part about it is you dont have to worry about being tangled up in wires. Bluetooth wireless technology is an inexpensive, shortrange radio technology that eliminates the need for proprietary cabling between devices such as notebook pcs, handheld pcs, personal digital assistants pdas, cameras, and printers. Bluetooth vs wifi difference and comparison diffen. It is best suited to lowbandwidth applications like transferring sound data with. We have seen wireless technology in cell phones and radios. Wifi technology has its origins in a 1985 ruling by the u. The term was invented by the marketing departments of wi. Recent advances in networking technology have made it possible for devices to communicate using various light and wave emitting technologies. A connection is established using a wireless adapter to create hotspots areas in the vicinity of a wireless router that are connected to the network and allow users to access internet services.

Wifi wireless fidelity is a generic term that refers to ieee 802. As the name indicates, wifi provides wireless access to applications and data across using radio waves. Federal communications commission that released the bands of the radio spectrum at 900 megahertz mhz, 2. Wifi allows highspeed internet connections without the use of cables. The wifi alliance had hired interbrand to create a name that was a little catchier than ieee 802. Introduction to wireless networks when you invent a new network. Bluetooth and wifi are different standards for wireless communication.

But this service was pretty expensive till 2002,however the new 802. Introduction wifi technology wifi network elements wifi network topologies hotspots how a wifi network works advantages limitations conclusion. One of the biggest advantages of wireless networks is its ability to fuel increased mobility in businesses. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a german physicist. Introduction to wireless technology the term wireless communication refers to the transfer of information using electromagnetic em or acoustic waves over the atmosphere rather than using any propagation medium that employs wires. Phil belanger, a founding member of the wifi alliance who presided over the selection of the name wifi, has stated that interbrand. The wireless network is operating three essential elements that are radio signals, antenna and router.

Impact of wireless technology in the workplace small. Sumit thakur ece seminars wifi technology seminar and ppt with pdf report. Wireless fidelity popularly known as wifi, developed on ieee 802. Wifi wifi is a technology for wlan based on the ieee 802. Requires support for wifi protected setup with its pushbutton or pinbased setup. As the innovative thinking of persons is increasing daybyday, new methods for wireless networking has been evolved of which our present topic wifi is the most accepted.

Current wifi systems support a peak physicallayer data rate of 54 mbps and typically provide indoor coverage over a distance of 100 feet. Wifi is primarily a local area networking lan technology designed to provide inbuilding broadband coverage. Pdf wireless fidelity wifi broadband network technology has made tremendous impact in the growth of broadband wireless networks. Compatible devices can network through a wireless access point to each other as well as to wired devices and the internet. The importance and uses of wifi technology science online.

A hotspot is any location where wifi network access is made publicly available. Wireless technology refers to technology that allows us to communicate without using cables or wires. Developed by mit researchers, it uses wifi signals to see through the walls. It is a technology for wireless local area networking with devices based on ieee 802. Wifi technology free download as powerpoint presentation. Wifi technology wifi is stand for wireless fidelity is generic term that refers to ieee802. Wifi technology, what is wifi technology, wireless. This provides a focus for the work of equipment developers and service providers and is as much a. Technology is making rapid progress and is making many things easier. With wireless technologies, people and other entities can communicate over very long distances. See below for a comparison of the common wireless standards. Aug 07, 2017 introduction wireless technology is an alternative to wired technology, which is commonly used, for connecting devices in wireless mode.

Wifi is used for different purposes such as data transmission and wireless communication, with using a wifi connection whenever possible will most often result in faster, more reliable internet access, and it is cheap wifi allows wireless connection for up to 20 meters, it is also known as internet routers, you no longer need cords or internet. In this paper, we show that wifi can also extend our senses, enabling us to see moving objects through walls and behind closed doors. Introduction bluetooth wireless technology bwt was developed in 1994 at ericsson in sweden. Wifi is an alternative network to wired network which is commonly used for connecting devices in wireless mode. Wifi wireless technology working principles, types and. Wifi technology wifi is an alternative network to wired network which is commonly used for connecting devices in. Wifi was developed to be used for mobile computing devices, such as laptops, in.

Wifi is a generic term that refers to the ieee 802. Wifi technology is a spectrum radio technology and ofdm radio technology therefore it is an alternate of wireless lan. In a survey of mobile and fixedline operators conducted in summer 2015, rethink technology research found that almost 90% of mnos, and over 70% of msos, planned to deploy wifi calling between 2015 and 2020. A workplace equipped with wireless technology and mobile devices will make it easier for reconfiguration. Wifi uses multiple parts of the ieee 802 protocol family and is designed to seamlessly interwork with its wired sibling ethernet. Wifi technology is a spectrum radio technology and ofdm radio technology therefore. A free powerpoint ppt presentation displayed as a flash slide show on id. Wifi was developed to be used for mobile computing devices, such as laptops, in lans. Before you start proceeding with this tutorial, we are making an assumption that you are. Wireless technology allows entrepreneurs to grow their businesses without any hassles. Wifi is used for different purposes such as data transmission and wireless communication, with using a wifi connection whenever possible will most often result in faster, more reliable internet access, and it is cheap. The term wifi is a contraction of wireless fidelity and commonly used to refer to wireless networking technology. Technology firms began building wireless networks and devices to take advantage of the newly available radio spectrum, but without a common.

Scribd is the worlds largest social reading and publishing site. Internet and voip phone access, gaming, and basic connectivity of consumer electronics such as televisions and dvd players, or digital cameras. Wifi is primarily a local area networking lan technology designed to provide in building broadband coverage. Digital radio co m m unications for research and training in. In terms of the osi reference model, the radio signal operates at the physical layer, and the data format controls several of the higher layers. The wifi technology wifi networks use radio technologies to transmit and receive data at high speed. It is widely used technology advancement in wireless communication for over decay now. The deve lopment of this technology began in 1997, when the institute of electrical and electronic engineers ieee introduced the standard 802. Department of management information systems, college of information. Wireless and mobile technologies have changed our lives in ways we are only beginning to understand.

Wifi network connect computers to each other, to the internet and to the wired. This tutorial gives you a basic understanding on wifi. Wifi technology article about wifi technology by the. There are two main advantages of using wireless technology for computer networks. Owing to the flexibility of the wireless network, users can be added easily.

Brady covering the topic of talking by wireless as you travel by train or motor, which noted it is now possible for a business man to talk with his of. An introduction to wireless technology articles yawarra. Rf and ir stand for radio frequency and infrared respectively. The best thing in wifi technology is that it provides multiuser environment for us, unlike a dedicated connection where only one person can make use of the network at a time. Thats the way most people relate to all of the technology that surrounds themyou shouldnt have to worry about the 802.