Wireless LAN’s and How it has Taken Its Place in Society By Robert Harris

Purposes of Research What are the pros and cons of WLANs? What are some things effected by WLAN How has it improve technology? How has WLANs change the functionality of business and society?

Examples of WLANs Topology

Brief History of WLANs At the University of Hawaii in1970 the1st computer communications network was developed using low-cost ham- like radios, called ALOHnet Bi-directional star topology of the system included seven computers was deployed over four islands to communicate with the central computer on the Oahu Island without using phone lines. 1990s standards replaced with new standards, primarily the various versions of IEEE Wi-Fi

Types of WLANs Standards a o Data transfer rates up to 54Mbps o Support more simultaneous connections o Better at maintaining connections b o Data transfer speeds up to 11Mbps o Uses hardware that tends to be less expensive o More susceptible to interference o better than a

WLANs Standards Continue g o Faster than b o Data transfer rates up to 54Mbps o It works in the 2.4 GHz band

WLANs Standards

The Impacts of WLANs Technology 81% of global executives use a mobile device Estimates that there will be 1 billion mobile workers by 2011, including nearly 75% of the US workforce 21 million Americans was using public WLANs in 2007 More than 40,000 hot-spots nationwide

Advantages of WLANs Easier to add or move workstations. Easier to provide connection in areas where it is difficult to lay cable. Eliminate the need to pull cable through walls and ceilings. Can access networks from anywhere within range of an access point. Portable or semi-permanent buildings can be connected using a WLAN. Avoid the need to drill holes in walls.

Advantages of WLANs Continues Mobility able to move around without the need of wires. Can be expanded and connect several buildings. Easy access to the Internet in public places (conference rooms, hotels, hospitals etc.)

Disadvantages of WLANs As the number of computers using increases, data transfer rate to each computer will decrease As standards change, it may be necessary to replace wireless cards and/or access points. Lower wireless bandwidth means some applications such as video streaming will be more effective on a wired LAN. Security is more difficult to guarantee and requires configuration. Devices will only operate at a limited distance from an access point

Device that Use WLANs Computers Video Game Consoles Smart Phones Printer Laptops Ipods Watches

Things Mobile Device are Used For Personal Side Listen to the Radio Ordering Things Find a Restaurant M-Commerce Personal Planner GPS Business Side Closing Business Deals E-Commerce Trading Stock Booking tickets Transferring Data Updates of the News

Potential Resources WIRELESS LAN © WirelessLANs.org ( Public Service Ads by Google Jul 08, :00 by admin Characteristics of Wireless Data Networks Murphy, D., The mobile economy becomes a reality, Telecommunications, 33 (11), 31–34, Jon Friedmana, a. D. (2008). Protecting data on mobile devices: A taxonomy of security threats to mobile computing and review of applicable defenses. Information Knowledge Systems Management, Kenneth C. Laudon, Jane P. Laudon, Management Information Systems Managing the Digital Firm, IT Infrastructure and Emerging Technologies, 173 ( ) The Trustees of Indiana University Daniel Henkel, Najwa Houchaime, Nada Locatelli, Sukhjinder Singh, The Impact of Emerging WLANs on Incumbent Cellular Service Providers in the U.S. WIRELESS LAN © WirelessLANs.org ( Public Service Ads by Google Jul 08, :00 by admin Characteristics of Wireless Data Networks Murphy, D., The mobile economy becomes a reality, Telecommunications, 33 (11), 31–34, Jon Friedmana, a. D. (2008). Protecting data on mobile devices: A taxonomy of security threats to mobile computing and review of applicable defenses. Information Knowledge Systems Management, Kenneth C. Laudon, Jane P. Laudon, Management Information Systems Managing the Digital Firm, IT Infrastructure and Emerging Technologies, 173 ( ) The Trustees of Indiana University Daniel Henkel, Najwa Houchaime, Nada Locatelli, Sukhjinder Singh, The Impact of Emerging WLANs on Incumbent Cellular Service Providers in the U.S.

The End Thank You Thank You