Seminar 13624f

A TECHNICAL SEMINAR PRESENTATION ON

WIMAX ( WORLDWIDE INTEROPERABILITY FOR MICROWAVE ACCESS ) PRESENTED BY

WWW.TRICKSWORLD.NET.TC

SEMINAR CONTENTS     

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Introduction Goals of WiMAX Operating Principle of WiMAX WiMAX System Types WiMAX Standards Evolution WiMAX Over Other Technologies Advantages of WiMAX Disadvantages of WiMAX WiMAX Applications Conclusion

INTRODUCTION 

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Wireless Internet access nowadays has become everywhere in everyday lives. Examples of wireless technologies includes, Wi-Fi (IEEE 802.11), Bluetooth, WiMAX (IEEE 802.16), and more. WiMAX could replace cables and DSL services providing universal Internet access. WiMAX is similar to Wi-Fi –turning your computer ON will automatically connect you to the closest available WiMAX antenna.

GOALS OF WIMAX 

The goal of WiMAX is to provide high-speed internet access in a coverage range several kilometers in radius .

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WiMAX provides about 70Mbps with a range of 50 kilometers.

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WiMAX standard has the advantage that it can both LOS ( line of sight ) as well as NLOS( non line-of-sight )

OPERATING PRINCIPLE OF WIMAX 

The IEEE 802.16 standard have two categories 

Fixed WiMAX : provides for fixed line communication with an antenna mounted on a rooftop , like a TV antenna .

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Mobile WiMAX : allows mobile client machines to be connected to the internet . Mobile WiMAX opens the doors to mobile phone use over IP , and even high-speed mobile services.

A WiMAX tower : similar to the concept of phone tower, which can provide the coverage to rural areas. 

A WiMAX receiver : the receiver and antenna could be a small box or PCMCIA card.

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Non-line-of-sight : this is Wi-Fi sort of service where a small antenna on your computer connects to the tower ,which uses a lower frequency range –2GHz to 11GHz

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Line-of-sight : Here a fixed dish antenna points straight at the WiMAX tower from a rooftop or pole, which is more stable and stronger connection .This uses a frequency range of possibly 66GHz

WIMAX SYSTEM TYPES

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Some of the different types of uses that WiMAX provides Point to Point (PTP) : Here the connection may be independent from all other systems or networks. Point to multipoint(PTMP) : It allows a radio system to provide services to multiple s. WiMAX can also be setup as mesh networks allowing the WiMAX systems to forward packets between the base stations and subscribers without having to install communication lines between the base stations .

WIMAX STANDARD EVOLUTION

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To provide wireless broadband service in lower frequency range, the 802.16A specification was created that operates in the 2-11Ghz.

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To provide both fixed and mobile service ,the 802.16E specification was developed.

WIMAX OVER OTHER TECHNOLOGIES 3G

Wi- Fi 802.11

WiMAX 802.16

MOBILEFi 802.20

54Mbps

100Mbps

16Mbps

Max speed

2Mbps

Coverage

Several miles 300 feet

50 miles

Several miles

Airwaves

Licensed

Un-licensed

Either

Licensed

Advantages

Range ,mobility

Speed, price

Speed ,range

Speed ,mobility

Short range

Interference issues ?

High price

Disadvantag Slow, es expensive

ADVANTAGES OF WIMAX 

Single station can serve hundreds of s.

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Much faster effect of new s comparing to wired networks.

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Speed of 10 Mbps at 10 kilometers within line-ofsite.

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It is standardized, and the same frequency equipment should work together.

DISADVANTAGES OF WIMAX 

Bad weather conditions such as rain could interrupt the signal.

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High installation and operational cost.

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Other wireless equipment could cause interference

WIMAX APPLICATIONS

CONCLUSION 

Within five years ,we expect WiMAX to be the dominant technology for wireless networking .

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As the cellular operators move to IP based 4G systems ,they will include WiMAX,

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WiMAX advantages exceed the performance and cost advantages that people talk about always.

THANK YOU