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WiMAX PowerPoint PPT Presentation

WiMAX. Henry Ho CIS 410 Spring 2005 Prof. Sabet. Current Internet access technologies. Broadband DSL Cable WiFi hotspots Dial-up. WiMAX Highlights. Speed Faster than broadband service Wireless Not having to lay cables reduces cost Easier to extend to suburban and rural areas

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Henry Ho

CIS 410

Spring 2005

Prof. Sabet

Current internet access technologies

Current Internet access technologies

  • Broadband

    • DSL

    • Cable

  • WiFi hotspots

  • Dial-up

Wimax highlights

WiMAX Highlights

  • Speed

    • Faster than broadband service

  • Wireless

    • Not having to lay cables reduces cost

    • Easier to extend to suburban and rural areas

  • Broad coverage

    • Much wider coverage than WiFi hotspots

Wimax highlights1

WiMAX Highlights

  • WiMAX

    • Worldwide Interoperability for Microwave Access

    • Is a certification mark for products that pass conformity and interoperability tests for the IEEE 802.16

Wimax system parts

WiMAX System Parts

  • WiMAX tower

    • Similar in concept to a cell-phone tower

      • Can provide coverage to a very large area -- as big as 3,000 square miles

  • A WiMAX receiver

    • The receiver and antenna could be a small box or PCMCIA card, or they could be built into a laptop the way WiFi access is today

Wimax system parts1

WiMAX System Parts

  • A tower station can connect directly to the Internet using a high-bandwidth, wired connection

  • It can also connect to another WiMAX tower using a line-of-sight, microwave link.

    • Often referred to as a backhaul

    • Allows WiMAX to provide coverage to remote rural areas.

Two forms of wireless service

Two forms of wireless service

  • Non-line-of-sight

    • A small antenna on your computer connects to the tower

    • 2 GHz to 11 GHz frequency range

    • Limited to a 4-to-6 mile radius

Two forms of wireless service1

Two forms of wireless service

  • Line-of-sight service

    • A fixed dish antenna points straight at the WiMAX tower from a rooftop or pole.

    • 66 GHz frequency range

    • Higher frequencies, there is less interference and lots more bandwidth

    • 30-mile radius



  • Range

    • 30-mile radius from base station

  • Speed

    • 70 megabits per second

  • Line-of-sight not needed between user and base station

Cis410 wimax

  • In practical terms, WiMAX would operate similar to WiFi but at higher speeds, over greater distances and for a greater number of users.

Wifi hotspot replacement

WiFi hotspot replacement

  • Cities might pay to have WiMAX base stations set up in key areas for business and commerce and then allow people to use them for free.

    • Similar to free WiFi hotspots, but wider range

  • Some companies might set up WiMAX transmitters and then make people pay for access.

    • Similar to paid WiFi hotspots, but wider range

Dsl cable modem replacement

DSL/cable modem replacement

  • Current high speed access method

    • The cable (or phone) company has a line that runs into your home.

    • That line goes to a cable modem, and another line runs from the modem to your computer.

    • If you have a home network, first it goes to a router and then on to the other computers on the network.

Dsl cable modem replacement1

DSL/cable modem replacement

  • WiMAX access method

    • An Internet service provider sets up a WiMAX base station.

    • You would buy a WiMAX-enabled computer or upgrade your old computer to add WiMAX capability.

    • You would receive a special encryption code that would give you access to the base station.

    • The base station would beam data from the Internet to your computer

    • If you have a home network, the WiMAX base station would send data to a WiMAX-enabled router, which would then send the data to the different computers on your network.

Cis410 wimax


  • The WiMAX protocol is designed to accommodate several different methods of data transmission, one of which is Voice Over Internet Protocol (VoIP).



  • SANTA CLARA, Calif., April 18, 2005 - Intel Corporation today announced the availability of its first WiMAX product, providing equipment manufacturers and carriers the ability to deliver next-generation wireless broadband networks around the world.

  • Several service providers worldwide announced plans to begin commercial WiMAX trials based on Intel silicon products later this year,

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