Network and Internet Technology.

8/9/2019 Network and Internet Technology.

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NETWORK AND INTERNETNETWORK AND INTERNET

TECHNOLOGYTECHNOLOGY

Presented ByPresented By::

1.shubham1.shubham

Telecommunication Engineering,Telecommunication Engineering,

K.I.T.,TIPTUR,Karnataka,IndiaK.I.T.,TIPTUR,Karnataka,India

KIT,TipturKIT,Tiptur


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CommunicationCommunication



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Worldwide

Interoperability for

Microwave Access

IEEE802.16IEEE802.16

Taking Wireless to MAXKIT,TipturKIT,Tiptur


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WWAN

802.20 (proposed)

MAN70 Mbps

~50 Km

802.16a/e

W

imaxNew standard forFixed broadbandWireless.

WLAN11-54 Mbps

~100m

802.11a/b/g

Wi-FiIncludes 802.11a/b/g.

Products must beApproved forInteroperability by theWi-Fi Alliance. PAN

~1.5 Mbps


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An OverviewAn Overview

IntroductionIntroduction

Working of WimaxWorking of Wimax

Features of WimaxFeatures of Wimax

The TechnologyThe TechnologyWireless aspectWireless aspect

Competing TechnologiesCompeting Technologies

Advantages of Wimax over WifiAdvantages of Wimax over Wifi

Applications of WimaxApplications of WimaxFuture Scope of WimaxFuture Scope of Wimax

ConclusionConclusion



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WiMAX (Worldwide Interoperability forWiMAX (Worldwide Interoperability forMicrowave Access).Microwave Access).

provides wireless data over longprovides wireless data over longdistances in a variety of ways, fromdistances in a variety of ways, frompointpoint--toto--point links to full mobile cellularpoint links to full mobile cellulartype accesstype access

It is based on the IEEE 802.16 standardIt is based on the IEEE 802.16 standard= WirelessMAN= WirelessMAN

What is WIMAX?What is WIMAX?



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a standardsa standards--based technology enablingbased technology enabling

the delivery of last mile wirelessthe delivery of last mile wireless

broadband access as an alternative tobroadband access as an alternative to

cable and DSL.cable and DSL.

The standard is called 802.16The standard is called 802.16--20042004

IEEE 802.16

IEEE 802.16



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Infrastructure of WIMAXInfrastructure of WIMAX

AA WiMAX towerWiMAX tower, similar in, similar inconcept to a cellconcept to a cell--phonephonetowertower -- A single WiMAXA single WiMAXtower can provide coveragetower can provide coverage

to a very large area as bigto a very large area as bigas 3,000 square milesas 3,000 square miles(~8,000 square km).(~8,000 square km).

AA WiMAX receiverWiMAX receiver-- TheThereceiver and antenna couldreceiver and antenna couldbe a small box or Personalbe a small box or PersonalComputer Memory card, orComputer Memory card, orthey could be built into athey could be built into alaptop the way WiFi accesslaptop the way WiFi accessis todayis today



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FEATURES OF WIMAXFEATURES OF WIMAX

ScalabilityScalability

Quality of ServiceQuality of Service

RangeRange

CoverageCoverage



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The TechnologyThe Technology



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The Wireless AspectThe Wireless Aspect

KIT,Ti turKIT,Ti tur


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yLine-of-sight servicey A fixed dish antenna points

straight at the WiMAX tower

from a rooftop or pole.

y 66 GHz frequency range

y Higher frequencies, there is less

interference and lots more

bandwidthy 30-mile radius



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Non-line-of-sightA small antenna on

your computer

connects to the tower2 GHz to 11 GHz

frequency range

Limited to a 4-to-6

mile radius



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HOW WiMax works?HOW WiMax works?



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Competing technologiesCompeting technologies

TechnologyTechnology

Ser vicesSer vices

WiWi--FiFi

802.11802.11

WiMAXWiMAX

802.16a802.16a

,16e,16e

BandWidthBandWidth 20 MHz20 MHz 1.51.5--20 MHz20 MHz

DownloadDownload 54Mbps54Mbps--

100Mbps100Mbps

9.4 Mbps9.4 Mbps

UploadUpload 20Mbps20Mbps 3.3, 6.5 Mbps3.3, 6.5 Mbps

RangeRange 100 Ft100 Ft --1000Ft1000Ft 33--5 Miles5 Miles

MobilityMobility LowLow MediumMedium



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Advantages of WIMAX over WIFIAdvantages of WIMAX over WIFI

SpeedSpeed

Faster than broadband serviceFaster than broadband service

WirelessWireless Not having to lay cables reduces costNot having to lay cables reduces cost

Easier to extend to suburban and rural areasEasier to extend to suburban and rural areas

Broad CoverageBroad Coverage

Much wider coverage than WiFi hotspotsMuch wider coverage than WiFi hotspots



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LAN 802.11g Wi-Fi

Out of Range

WiFi WiMax MeshWiFi WiMax Mesh

systemsystem



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Other advantages in a nutshellOther advantages in a nutshell

Robust, reliable carrier class lastRobust, reliable carrier class last--milemile

technology with QoStechnology with QoS

For many types of highFor many types of high--bandwidthbandwidthapplicationsapplications

-- at the same time, across long distancesat the same time, across long distances

Enabling new applications that improveEnabling new applications that improvedaily lifedaily life



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WiMax benefitsWiMax benefits

Consumers More choices for getting broadband access!

Operators More choices for efficient use of valuable spectrum

Multiple equipment suppliers + lower costs = lower

investment risk

Fill broadband access gaps for Residential & Business

Quickly provision broadband access & service levels

Equipment makers

No longer need to develop every piece of the end-to-endsolution

Can innovate more rapidly

Component makers Creates a volume opportunity for silicon suppliers



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Uses of WimaxUses of Wimax



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WiMax will be deployed in three stagesWiMax will be deployed in three stages

In the first phase WiMaX technology (based on IEEEIn the first phase WiMaX technology (based on IEEE

802.16) provides fixed wireless connections802.16) provides fixed wireless connections

In the second phase WiMaX will be available as a cheapIn the second phase WiMaX will be available as a cheapand selfand self--installing Subscriber Terminal (ST), linked to PCinstalling Subscriber Terminal (ST), linked to PCand to antennaand to antenna

The third phase enables portability, thus WiMAX (basedThe third phase enables portability, thus WiMAX (basedon IEEE 802.16e) will be integrated into commercialon IEEE 802.16e) will be integrated into commerciallaptopslaptops

FUTURE of WimaxFUTURE of Wimax



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Evolution of Wimax.Evolution of Wimax.



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ProblemProblem SolutionSolutionNon Line of Sight CoverageNon Line of Sight Coverage Channel Diversity, CodingChannel Diversity, Coding

High Data Rate and CapacityHigh Data Rate and Capacity OFDM , Adaptive AntennasOFDM , Adaptive Antennas

Quality of ServiceQuality of Service Complex MAC layer, IPComplex MAC layer, IP

convergenceconvergence

MobilityMobility Seamless Handover, IPSeamless Handover, IP

Based NetworkBased Network

PortabilityPortability Power Efficient Modulation,Power Efficient Modulation,

Sleep Wake modesSleep Wake modesSecuritySecurity Encryption, Authentication,Encryption, Authentication,

Access controlAccess control

Low CostLow Cost IP based protocol and LargeIP based protocol and Large

Consumer ServiceConsumer Service

Challenges for WiMAXChallenges for WiMAX OvercomeOvercome



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WiMAX advantages exceed the performance andWiMAX advantages exceed the performance and

cost advantages that people talk about always.cost advantages that people talk about always.

WiMAX offers developing and poor areas wirelessWiMAX offers developing and poor areas wireless

access without the need to a proper infrastructureaccess without the need to a proper infrastructure

such as cabling and jacking the wireless.such as cabling and jacking the wireless.

Along with the forthcoming standardization, WiMAXAlong with the forthcoming standardization, WiMAX

has the potential to substitute 3G and become ahas the potential to substitute 3G and become a

promising 4Gpromising 4G

ConclusionConclusion



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[1] WiMAX Forum

[2] IEEE 802.16 Working Group

[3] Fundamentals of WiMAXJ. Andrews, A. Ghosh, R. Muhamed -Prentice Hall

Edition 1

[4] http://www.intel.com/technology/wimax

[5] Mobile WiMAX PHY Layer Operation and ManagementAgilent Technologies

[6] Wikipedia http://en.wikipedia.org/wiki/Wimax

[7] Wimax.com www.wimax.com/education/wimax/

ReferencesReferences



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Questions ??Questions ??KIT,Ti turKIT,Ti tur

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