WIMAXWIMAX

presented by Bhanu & Prashant

INTRODUCTIONINTRODUCTION

• Think about how you access the Internet Think about how you access the Internet today.today.

• There are basically three different options:There are basically three different options:– BROADBAND ACCESSBROADBAND ACCESS– WIFI ACCESSWIFI ACCESS– DIAL-UP ACCESSDIAL-UP ACCESS

• The main problems with broadband access The main problems with broadband access are that it is pretty expensive & it doesn’t are that it is pretty expensive & it doesn’t reach all areas.reach all areas.

• The main problem with WIFI is that hot The main problem with WIFI is that hot spots are very small, so coverage is sparse. spots are very small, so coverage is sparse.

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What if there were a new What if there were a new technology that solved all of technology that solved all of

these problems?these problems?This new Technology would provide:-This new Technology would provide:-• High speed of broadband serviceHigh speed of broadband service• Wireless rather than wired accessWireless rather than wired access• That is less expensive than cableThat is less expensive than cable• Much easier to extend to rural areasMuch easier to extend to rural areas• Broad coverage like cell phone Broad coverage like cell phone

networks.networks.

All this is possible withAll this is possible with WIMAXWIMAX

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WHAT IS WIMAX?WHAT IS WIMAX?

• WIMAX stands for Worldwide WIMAX stands for Worldwide Interoperability of Microwave Access.Interoperability of Microwave Access.

• WIMAX is a wireless digital WIMAX is a wireless digital communications system also known as communications system also known as IEEE 802.16.IEEE 802.16.

• WIMAX can provide broadband WIMAX can provide broadband wireless access up to 30 miles(50 km) wireless access up to 30 miles(50 km) for fixed stations and 3-10 miles(5-15 for fixed stations and 3-10 miles(5-15 km) for mobile stations.km) for mobile stations.

• It involves microwaves for the transfer It involves microwaves for the transfer of data wirelessly.of data wirelessly.

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How does WIMAX Work ? How does WIMAX Work ?

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

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

• This connection to a second tower, along This connection to a second tower, along with the ability of a single tower to cover with the ability of a single tower to cover up to 30 square miles, is what allows up to 30 square miles, is what allows WIMAX to provide coverage to remote WIMAX to provide coverage to remote rural areas.rural areas.

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Reliance WIMAX broadband Reliance WIMAX broadband deliverydelivery

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How WIMAX Works ? How WIMAX Works ? (continued)(continued)

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

• WIMAX could potentially WIMAX could potentially erase the suburban & erase the suburban & rural blackout areas that rural blackout areas that currently have no currently have no broadband internet broadband internet access because phone access because phone and cable are not yet and cable are not yet reached the remote reached the remote locations.locations.

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Wi-Fi hotspot. Soon, Mobile WIMAX will blanket

large areas—metropolitan, suburban,

or rural—delivering mobile broadband Internet

access at speeds similar to existing

broadband.

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ADVANTAGESADVANTAGES

• Single station can serve hundred of users.Single station can serve hundred of users.

• Quick Installation:Quick Installation:– Getting your connectivity up and working Getting your connectivity up and working

as quickly as possible. If you are moving, as quickly as possible. If you are moving, starting up at a new location or need a fast starting up at a new location or need a fast back-up solution, the WIMAX service is back-up solution, the WIMAX service is ideal.ideal.

• High data rateHigh data rate• Large coverageLarge coverage• Line of sight not needed b/w user & base Line of sight not needed b/w user & base

station.station.• Relief from cabling cost.Relief from cabling cost.

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• SecuritySecurity• BandwidthBandwidth FlexibilityFlexibility

• PricingPricing + + ContractContract Flexibility:Flexibility:– WIMAX service offers pricing based WIMAX service offers pricing based

on your bandwidth demands.on your bandwidth demands.

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DISADVANTAGESDISADVANTAGES

• Line of sight is needed for more distant Line of sight is needed for more distant connections.connections.

• Susceptible to weather effects like rain Susceptible to weather effects like rain etc. etc.

• Other wireless equipments could cause Other wireless equipments could cause interference.interference.

• WIMAX is a very power consuming WIMAX is a very power consuming technology.technology.

• High cost of design, implementation High cost of design, implementation and maintenance.and maintenance.

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WIMAX Applications & ServicesApplications :

Last Mile: Broadband Internet access.

Backhaul network

Hospital

Traffic management

Deploying infrastructure for events

Military and Defense

Services :Network backhaul

VoIP

Interactive gaming

Web browsing

File transfer

Streaming multimedia (video

conferencing)

TYPES OF WIMAXTYPES OF WIMAX• FIXED WIMAX:FIXED WIMAX:

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

• MOBILE WIMAX:MOBILE WIMAX:– Mobile WIMAX Mobile WIMAX

implementations can implementations can be used to deliver be used to deliver both fixed & mobile both fixed & mobile services.services.

SAMSUNG MOBILE WIMAX DEVICES

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WIMAX InstrumentsWIMAX Instruments

WIMAX PC CARDS, unwired WIMAX PCMOBILE WIMAX HANDHELD16

COMPARISON b/w WIMAX & COMPARISON b/w WIMAX & WIFIWIFI

WIMAXWIMAX• WIMAX is a long WIMAX is a long

range system, range system, covering many covering many kms that typically kms that typically uses licensed uses licensed spectrum to spectrum to deliver a point-to-deliver a point-to-point connection point connection to the internet to the internet from an ISP to an from an ISP to an end user. end user.

• WIMAX provides WIMAX provides services analogous services analogous to cell phone.to cell phone.

WiFiWiFi• WiFi is shorter WiFi is shorter

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

• WiFi is more WiFi is more analogous to a analogous to a cordless phone.cordless phone.

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• It uses a It uses a mechanism based mechanism based on setting up on setting up connections connections between the base between the base station & user station & user device. Each device. Each connection is connection is based on specific based on specific scheduling algos, scheduling algos, which means that which means that quality of service quality of service can be can be guaranteed.guaranteed.

• WiFi has WiFi has introduced a introduced a quality of service quality of service mechanism mechanism similar to fixed similar to fixed Ethernet, where Ethernet, where packet can packet can receive different receive different priorities based priorities based on their tags. on their tags. This means that This means that QOS as opposed QOS as opposed to guaranteed.to guaranteed.

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BROADBAND ACCESSBROADBAND ACCESS

• Many companies are Many companies are closely examining closely examining WIMAX for “last-mile" WIMAX for “last-mile" connectivity at high connectivity at high data rates.data rates.

• The resulting The resulting competitions may bring competitions may bring lower pricing for both lower pricing for both home & business home & business customers, or bring customers, or bring broadband access to broadband access to places where it has places where it has been economically been economically unavailable. unavailable. 19

Networks around the Networks around the worldworld

WiMAX Networks around the World Beginning in 2004

• Europe: WIMAX networks have made their presence in Europe since as early as 2004.

• Norby Telecom and Wi-Manx were one of the first companies in Europe to deploy commercial WiMAX

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• Italy was one of the last European nations to join the WiMAX race. • China Netcom has provided

residential users of China with fixed Broadband Wireless Access since 2006.

• South Korean telecom industries have supplied a huge contribution to the development of Mobile WiMAX (802.16e), which they referred to as WiBro. • South America & North America have also established WIMAX networks there.

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FUTUREFUTURE

• Anywhere, Anytime Anywhere, Anytime ConnectivityConnectivity

– WIMAX offers such kind of service, so WIMAX offers such kind of service, so that you can get a connection, that you can get a connection, wherever you are & at a higher speed.wherever you are & at a higher speed.

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

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• Cost EffectiveCost Effective– There are areas of the world-especially There are areas of the world-especially

in rural areas-where deploying wired in rural areas-where deploying wired broadband infrastructure is not cost broadband infrastructure is not cost effective. effective.

– In this case WIMAX will be very cost In this case WIMAX will be very cost effective.effective.

Summing up WIMAX will replace other Summing up WIMAX will replace other wireless wireless

technologies.technologies.

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THANKTHANK

YOUYOU

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