INTERNETINTERNET

INTERNET

BROADBAND ACCESSWi-Fi ACCESS

DIAL-UP ACCESS

Broadband –through DSL or cable Broadband –through DSL or cable modem.modem.

Wi-Fi – through Wi-Fi router.Wi-Fi – through Wi-Fi router.

Dial-up – through telephone Dial-up – through telephone network.Speed is a problemnetwork.Speed is a problem

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

problems? problems?

High speed High speed WirelessWireless Coverage Coverage and that is …..and that is …..

WiMAXWiMAX World wide Interoperability for World wide Interoperability for

Microwave Access.Microwave Access. Aimed at providing wireless Aimed at providing wireless

broadband connection over long broadband connection over long distances.distances.

Coverage in square miles.Coverage in square miles.

It is based on IEEE 802.16 standard.It is based on IEEE 802.16 standard. It is also called Wireless MAN.It is also called Wireless MAN. Providing a wireless alternative to Providing a wireless alternative to

cable and DSL broadband access.cable and DSL broadband access. Providing high speed mobile data Providing high speed mobile data

and telecommunication services.and telecommunication services.

COMPONENTSCOMPONENTS

Base station.Base station. WiMAX hub.WiMAX hub. WiMAX enabled WiMAX enabled

devices.devices.

WiMAXWiMAX

Neither wimax of Wi-Fi is a Neither wimax of Wi-Fi is a technology.technology.

A certification mark or stamp of A certification mark or stamp of approval.approval.

The hardware should follow the The hardware should follow the specificction.specificction.

Wimax enhances Wi-FiWimax enhances Wi-Fi

IEEE 802.16 specificationIEEE 802.16 specification

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

Speed - 70 megabits per second Speed - 70 megabits per second Line-of-sight not needed between user Line-of-sight not needed between user

and base station and base station Frequency bands - 2 to 11 GHz and 10 Frequency bands - 2 to 11 GHz and 10

to 66 GHz to 66 GHz Defines both the MAC and PHY layers Defines both the MAC and PHY layers

and allows multiple PHY-layer and allows multiple PHY-layer specifications specifications

WORKINGWORKING With WiMAX we create ubiqutious With WiMAX we create ubiqutious

access.access. WiMAX would operate similar to Wi-Fi WiMAX would operate similar to Wi-Fi

but at higher speed.but at higher speed. A typical WiMAX system consists of A typical WiMAX system consists of

two parts.two parts.

1. WiMAX tower.1. WiMAX tower.

2. WiMAX receiver.2. WiMAX receiver.

PARTSPARTS

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, tower using a line-of-sight, microwave link. microwave link.

OPERATIONOPERATION

WiMAX operates on the same general WiMAX operates on the same general principles as Wi-Fi .principles as Wi-Fi .

It sends data from one computer to It sends data from one computer to another via another via radioradio signals. signals.

ParameterParameterss

802.16802.16(WiMAX)(WiMAX)

802.11 802.11 (WLAN)(WLAN)

802.15 802.15 (Bluetooth(Bluetooth))

Frequency Frequency BandBand

2-11GHz2-11GHz 2.4GHz2.4GHz variesvaries

RangeRange ~31miles~31miles

~100mete~100metersrs

~10meter~10meterss

Data Data transfer transfer raterate

70Mbps70Mbps 11Mbps11Mbps 20Kbps20Kbps

Number Number of usersof users

thousandsthousands

dozensdozens dozensdozens

WiMAX can provide two forms of WiMAX can provide two forms of wireless servicewireless service

1..line of sight1..line of sight 2..nonline of sight2..nonline of sight

Wi-Fi v/s WiMAXWi-Fi v/s WiMAX

Both are meant for wireless Both are meant for wireless communicationcommunication

WiMAX is a long range system WiMAX is a long range system Wi-Fi is a short range systemWi-Fi is a short range system Wi-Fi ->>>>CORDLESS PHONEWi-Fi ->>>>CORDLESS PHONE WiMAX->>>CELL PHONEWiMAX->>>CELL PHONE

RangeRange

Wi Fi access will be limited to a 4-to-Wi Fi access will be limited to a 4-to-6 mile radius 6 mile radius

WiMAX will be limited to 30-mile WiMAX will be limited to 30-mile radius radius

A computer (either a desktop or a A computer (either a desktop or a laptop) equipped with WiMAX would laptop) equipped with WiMAX would receive data from the WiMAX receive data from the WiMAX transmitting station.transmitting station.

FUTURE PERFECTFUTURE PERFECT

Wireless technology that bring Wireless technology that bring broadband to rural areas.broadband to rural areas.

By 2010 industry analysts project the By 2010 industry analysts project the WiMAX market to be worth between WiMAX market to be worth between $3 and $5 billion. $3 and $5 billion.

INDIA and WiMAXINDIA and WiMAX

The demand for broadband connectivity .The demand for broadband connectivity . Roling out copper to rural areas is close to Roling out copper to rural areas is close to

impossible.impossible. The government telecoms operator BSNL The government telecoms operator BSNL

is also in the process of rolling out some is also in the process of rolling out some WiMAX services. WiMAX services.

WiMAX is the first truly broadband WiMAX is the first truly broadband technology available to meet Indian technology available to meet Indian market needs .market needs .

It is predicted that Indian WIMAX It is predicted that Indian WIMAX subscribers will around 13 million by 2012. subscribers will around 13 million by 2012.

Dishnet wireless plans to spend Dishnet wireless plans to spend US$50 million in india.US$50 million in india.

Reliance will also launch wimax in Reliance will also launch wimax in major cities.major cities.

WiMAX and BUSINESSWiMAX and BUSINESS

In this era businesses are expected In this era businesses are expected to look to wireless technology to help to look to wireless technology to help them become more efficient. them become more efficient.

Help businesspeople stay in Help businesspeople stay in business.business.

CONCLUSIONCONCLUSION

Where ever you go i am there – WiMAX.Where ever you go i am there – WiMAX. WiMAX is more like cable repalcement WiMAX is more like cable repalcement

technology ,which competes with wired technology ,which competes with wired operators.operators.

WiMAX is intended complement other WiMAX is intended complement other wireless standards such as WLAN and wireless standards such as WLAN and cellular based data networks. Together cellular based data networks. Together these provide many options to meet these provide many options to meet customer needs and grow the overall customer needs and grow the overall opportunity for wireless systems. opportunity for wireless systems.

REFERENCESREFERENCES

http://search.cnn.comhttp://search.cnn.com

http://www.wimaxxed.comhttp://www.wimaxxed.com

http://www.johntp.comhttp://www.johntp.com

http://www.wi-fi.orghttp://www.wi-fi.org

http://wikipedia.comhttp://wikipedia.com

http://www.bbc.ukhttp://www.bbc.uk

http://www.telecomasia.comhttp://www.telecomasia.com

ASST. PROFESSORASST. PROFESSORMETS SCHOOL OF ENGG - MALAMETS SCHOOL OF ENGG - MALA

PRESENTED PRESENTED

BYBY

AJAL.A.JAJAL.A.J

MOB: 0-8907305642MOB: 0-8907305642

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