Wimax Lavs Power Pt

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WiMAXTHE EMERGING TECHNOLOGY INWIRELESS COMMUNICATIONS


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PRESENTATION BY:

M. LAVANYA

06C91A1235

IT Dept.

B.Tech 4th yr.


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Contents

What is WiMAX ? How WiMAX Works Technologies Used WiMAX Features WiMAX Applications WiMAX/Wi-Fi Synergies Future with WiMAX


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Think of the Internet

Present three possible ways to

access Internet

Broadband Access

The main problem with broad band is thatit is expensive and doesnt reach all areas.

Wi-Fi Connection

The main problem with Wi-Fi access is that hot

spots are very small, so coverage is sparse. Dial Up Connection

Internet bandwidth is very sparse in this case.


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What is WiMAX ?

WiMAX is defined as WorldwideInteroperability for Microwave Access bythe WiMAX Forum, formed in June 2001.

The new technology promises

High speed of broadband service

Wireless rather than wired access

Broad Coverage


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Typical Working

WiMAX is a Wide Area Network (WAN) technology.Service providers will deploy a network of towers thatwill enable access over many miles. Internet access isinstantly available anywhere within coverage areas.


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Requirements WiMAX Tower

1) Coverage area of nearly

as big as 3000 sq miles.

2) Generally situated on

the top of the tall buildings..,.,mount.

WiMAX Subscriber Device

1)Receiver could be a

small box or PCMCIA

card built in a laptop.

2) It could be a WiMAX

wireless modem.


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How WiMAX Works ?


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Technologies Used

Two key advanced wireless breakthroughs incorporated intothe Mobile WIMAX standard

Orthogonal Frequency Division Multiple Access (OFDMA)

Multiple Input/Multiple Output (MIMO) smart antenna

technology


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Orthogonal Frequency Division Multiple Access (OFDMA)1) Breaking signal into many pieces to increase spectral

efficiency.

2) By diversifying the signal in this way, even if some of thepieces

dont make it through ,the signal can be reconstructed atthe

other end.

Multiple Input/Multiple Output (MIMO) smart antennatechnology

1) MIMO uses multiple antennas at both ends of the wireless

connection (base station and subscriber device) to enable

data to travel along multiple independent paths.

2) For example, a 1x2 configuration refers to a device with 1Tx

(transmit) and 2 Rx (receive) antennas; similarly, 3x3 refers

to 3 Tx and 3 Rx antennas.


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Working of MIMO


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WiMAXChips

WiMAX Mini-PCI Reference Design Intels new WiMAX chip

(Intel WIMAX Connection 2250)


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WiMAXApplications

CellularBackhaul BankingNetworks


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WiMAXFeatures

Advanced Security

Spectrum Used


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Security Features

Extensible Authentication Protocol (EAP)

Advanced Encryption Standard (AES)

Cipher-based Message Authentication Code (CMAC)

Hashed Message Authentication Code (HMAC)


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Licensed Spectrum

Licensed to thrillSpectrum is either licensed or unlicensed.

Unlicensed spectrum is open to any users,

which raises the possibility of interferencefrom other devices. Wi-Fi networks useunlicensed spectrum. WIMAX serviceproviders use licensed spectrum, whichallows exclusive rights to its use for more

predictability and stability.


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P2MP Architecture


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WiMAX/Wi-Fi Synergies

WiMAX takes your wireless Internet further, but you donthave to burn any Wi-Fi bridges. WiMAX and Wi-Fi areperfectly compatible companions. Together, they give youan always-best connected experience whether you are in aWi-Fi or WiMAX coverage area


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Backhauling Wi-Fi


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Word of Caution

Certified WiMAXWiMAX Forum Certified means anyone can buy aproduct or service based on the IEEE 802.16 standardfrom different companies and be confident that

everything will work together.


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WIMAX Industry MomentumEquipment Manufacturers Service Providers


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Future with WiMAX

Imagine broadband on the go enabled by WiMAX: Engaging in an epic, multiplayer 3-D battle on a train

Video conferencing from the park

Looking up the nearest local bookstore or getting

directions to a restaurant while on the move Downloading movies while at the soccer field

Staying productive on the road without searching forhotspots

This is our futureand WiMAX will deliver it.


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References

www.intel.com/go/wimax

www.wimaxforum.org

WiMAX Explained A Book On WiMAX

www.standards.ieee.org


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Thank you


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Wimax Lavs Power Pt

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