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introduction to

wimax

SEMINAR

ON

• Introduction• Design• How Wimax Works• Types• Specifications• Comparision B/W WiMax& Wifi• Advantages & Disadvantages• Limitations• Future• Conclusion

Outline

• A fourth generation (4G) technology.

• WiMAX stands for Worldwide Interoperability for Microwave Access.

• A Broadband Wireless Access(BWA) technique offering fast broadband connection.

• Founded by Ensemble, CrossSpan, Harris & Nokia

IntroductionWHAT IS WIMAX?

Design The WiMAX base station is mounted

on a tower or tall building to

broadcast the wireless signal

The subscriber receives the signals on a WiMAX enabled notebook, mobile Internetdevice (MID), or even a WiMAX modem.

Working

In practical terms, WIMAX would operate similar to WIFI but at higher speeds, over greater distances and for greater number of users.

When a user send data from a subscriber device to a base station then that base station broadcast the wireless signal into channel which is called uplink and base station transmit the same or another user is called downlink.

The Wimax network is just like a cell phone.

Working(CONTD.)

The first WiMAX chip

FIXED WIMAX:Fixed WIMAX deployments do not cater for hand off between base stations, therefore the service Provider cannot offer mobility.

MOBILE WIMAX:Mobile WIMAX implementations can be used to deliver both fixed & mobile services.

Types Of Wimax

SAMSUNG MOBILE WIMAX DEVICES

Range - 30-mile (50-km) radius from base station

Speed - 70 megabits per second

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

Frequency bands - 2 to 11 GHz and 10 to 66 GHz

Wimax Specifications

Comparison B/W Wimax & Wifi

WIMAXWIMAX is a long range system, covering many km’s that typically uses licensed spectrum to deliver a point-to-point connection to the internet from an ISP to an end user. •WIMAX provides services analogous to cell phone.

WiFiWiFi is shorter range

system, typically hundreds of meters, that uses unlicensed spectrum to provide access to a n/w.

WiFi is more analogous to a cordless phone.

ADVANTAGES

High Speed Good Coverage Smart antenna and mesh topology Quick Installation

DISADVANTAGES Lack of Quality Low Data Rate

Limitations So far one of the biggest restrictions to the widespread acceptance of WiMAX has been the cost of Wimax CPE (Wimax Receiver). This is not only the cost of Wimax CPE (Wimax Receiver) itself, but also that of installation.

FUTURE• Anywhere, Anytime, Connectivity

WIMAX offers the kind of service where you can get a connection, wherever u may be.

When WIMAX is fully developed, u will no longer be limited to 300 feet within the WIFI hotspot, & u won’t have to drive around looking for a connection….

Hold on to your Internet! WiMAX will soon be blowing broadband Internet over the landscape, reaching into more of the places where we live,

work, and play.

Conclusion

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