TRANSMISSION TECHNOLOGY FOR WI-FI

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} There are two technologies for transmission.1>    Narrowband Technology2>    Spread Spectrum Technology 1)    Narrowband Technology A narrowband radio system transmits and receives user information...

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THE FUTURE OF WI-FI

Intel put aside $150 million of this fund to invest in Wi-Fi initiatives. Intel expects to introduce its Banias processors for mobile devices during the first half of 2004, said a company spokes woman. Banias is a low power processor designed specifically for mobile devices that includes integrated 802.11a and 802.11b wireless capabilities. Cometa aims to roll out a nationwide Wi-Fi network and sell exclusively through the channel, said Lawrence Brilliant, CEO of Cometa, in a recent interview with CRN. Looking to Wi-Fi rather than 3G , BT (British Telco) has installed some 80 Wi-Fi hotspots, called ‘Openzone’ in Hilton hotels, airports and motorway service stations across the UK, and has agreements to put in place another 40. BT believes that Wi-Fi  which is expected to be half the price...

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APPLICATION AREAS OF WI-FI

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PROBLEMS WITH WI-FI

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ADVANTAGES OF WI-FI

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} 1>                It is fast and reliable.2>                It has long range. 1000 ft or 305m...

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WI-FI SECURITY

Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Here are a few simple steps you can take to maximize the security of your wireless network and to protect your data from prying eyes and ears. This section is intended for the home, home office and small office user. ·                   ...

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WI-FI VS BLUETOOTH

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WI-FI DRIVERS

Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} As wireless LAN grow within corporations, the desire to extend support       follows naturally. Cahners estimated that the number of 802.11 based access points shipped each year will nearly...

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WI-FI STANDARDS

There are mainly two standard for Wi-Fi. 1> 802.11a 2> 802.11b 1) 802.11b The most established wireless LAN technology it’s also the most affordable. Allows wireless connection up to 300 feet from an access point, and can easily be added to existing wired networks. With speeds up to 11Mbps, performance is comparable to standard wired Ethernet network. Industry standard 802.11b products are easy to find and compatible with each other. 2) 802.11a 802.11a provides a bigger pipe for data and supports more simultaneous users. Ideal for deployments where speed and bandwidth are important , 802.11a networks can run at up to 54Mbps and supports more users per access point than a Wi-Fi solution. Wi-Fi is a wireless communications specification for digital devices. Wi-Fi is often referenced...

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WHO CAN USE WI-FI?

Every one can use Wi-Fi almost every where in the world. Home Wi-Fi networks can connect multiple computers to each other, to peripherals and to the internet. A wi-fi network can connect a family’s computer together to share such hardware and software resources as printer and Internet. That means everyone in the family can share stored files, photos, and documents and print them out on a single printer attached to one desktop computers all without unsightly cables running throughout the home.In a home or home office, using wi-fi certified equipment in your wireless network gives you the ability to share a single high speed broadband cable or DSL connection. A wi-fi network can easily be expanded to ten users or more. Large corporations and campuses use enterprise level technology and Wi-Fi...

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WHY WI-FI?

The main reasons for using Wi-Fi are as below. • Mobility • Scalability • Increased Reliability • Reduced Installation Time • Financial benefit • Long-Term Cost Savings • Mobility Mobility enables users to physically move while using an appliance, such as a handheld PC or data collector. Many jobs require workers to be mobile, such as inventory clerks, healthcare workers ,police officers etc. Of course, wireless networks require a physical link between the user’s workstation and networks resources, which makes access to these resources impossible while roaming. Mobile applications requiring Wi-Fi networking include those that depend on real time access to data usually stored...

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WHAT IS WI-FI?

Wi-Fi is a trade-group certified wireless networking standard that rellies on the IEEE 802.11a and 802.11b specifications. The 802.11b spec allows for the wireless transmission of approximately 11 Mbps of raw data at indoor distances from several dozen to several hundred feet and outdoor distances of several to tens of miles as an unlicensed use of the 2.4GHz band. The 802.11a spec uses the 5GHz band , and can handle 54 Mbps at typically shorter distances. The distances for both standards depends on impediments, materials, and line of sight. The 802.11b specification started to appear in commercial form in mid-1999, with Apple Computer’s introduction of its Airport components, manufactured in conjunction with Lucent’s Wave LAN division. Wi-Fi is an extension of wired Ethernet, bringing...

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