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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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