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Chalking It Up

WiMAX BASED APPROACH TO ENHANCE LOCALIZED HUMAN SOCIAL NETWORK

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WiMAX 802.16e is the mobile extension from 802.16 Modification in PHY from OFDM to Scalable OFDMA Modification in MAC for security, handoff, roaming, & resource management

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Page 1: WiMAX  BASED APPROACH TO ENHANCE LOCALIZED HUMAN SOCIAL NETWORK

Chalking It Up

Page 2: WiMAX  BASED APPROACH TO ENHANCE LOCALIZED HUMAN SOCIAL NETWORK

WiMAXBASED APPROACH TO ENHANCE LOCALIZED HUMAN SOCIAL NETWORK.

AJAL.A.JAssistant ProfessorMets school of engineeringkerala

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Communication - Mobile

TelephoneExchange

SubscriberLine

Inter-ExchangeJunction

Mobile SwitchingCentre

(MSC)

BSC BTS

MS

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The Next G - a sneak preview

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Electromagnetic Spectrum

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This is Mobile Broadband

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Everywhere coverageThis is Mobile Broadband

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This is Mobile Broadband

Full mobility

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High data speedsThis is Mobile Broadband

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STANDARDIZED Integral part of WCDMA (3GPP Rel.5/6)

REDUCED DELAY Quicker response time with interactive services

CAPACITY 3 – 4 times improved system capacity Rel. 5/6

SPEED Higher bit rates: up to 14 Mbps

Network Coverage Short time to market with existing sites

REQUIREMENTS

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An ecosystem of devices spans all consumer electronics

3GPP

WiMAX

3GPP2

EDGE WCDMA HSPA LTE

802.16e 802.16m

CDMA1X

EV-DO DOrA

Personal Broadband

LTELTE

Wireless Technology Evolution

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Industry Trends

mgoswam1
Pointer on consumer trends – data from CI/reports (J. L. to check)
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WiMAX & LTE Makes On-Demand Possible

Entertainmentand productivity

Fashionable devices working across technologies

Personal broadband on the go

ANYTIME. ANYWHERE.

INSTANT ACCESS.

WIRELESS & MOBILE.

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GHz1 3

2 4

ISM: Industrial, Scientific & Medical Band – Unlicensed band

UNII: Unlicensed National Information Infrastructure band – Unlicensed band

UNII

ISM

5

802.11/802.16 Spectrum

InternationalLicensed

USLicensed

JapanLicensed

InternationalLicensed ISM

802.16a has both licensed and license-exempt options

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Title

WIMAXWIMAX

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19

Convergence Sub LayerConvergence Sub Layer

MAC LayerMAC Layer

PHY LayerPHY Layer

Security/Privacy Key, AES, EAPSecurity/Privacy Key, AES, EAP HandoffHandoff

Bandwidth ManagementBandwidth Management

Connection ManagementConnection Management

Power Mgnt Sleep/Idle Power Mgnt Sleep/Idle

IPIPPacket ClassifierPacket ClassifierEthernetEthernet ATMATM Header

SuppressionHeader Suppression

ARQARQ

PDU GenerationPDU Generation

PDU ReassemblyPDU ReassemblyNet EntryNet Entry

PHY Burst SchedulingPHY Burst Scheduling

SC 10-66GHzSC 10-66GHz

SCa 2-11GHzSCa 2-11GHz

OFDM 2-11GHz 256FFTOFDM 2-11GHz 256FFT

OFDMA 2-11GHz 2048FFTOFDMA 2-11GHz 2048FFT

OFDMA 2-11GHz (PAR <6GHz) 128, 256, 512,1024, 2048

OFDMA 2-11GHz (PAR <6GHz) 128, 256, 512,1024, 2048

802.16d802.16d 802.16e802.16e WiMAXWiMAX

802.16e is the mobile extension from 802.16 Modification in PHY from OFDM to Scalable OFDMA Modification in MAC for security, handoff, roaming, & resource management

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OFDMAOrthogonal Frequency Division Multiple Access

A flexible multiple access technology for the NGN

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Security

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4 Way Handshake

Access Point Laptop

RTS

CTS

Data

ACK

Ready to Send

Clear to Send

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Scenario of virtual community over geographical areas

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Wi-Fi and WiMAX interworked wireless citywide environment

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Advantages in Multipath

25

OFDMA carries advantages in “Multipath” CDMA uses the whole spectrum, wasting system resource to combat

frequency selective fading. CDMA also creates worse interference problem OFDMA only select subcarriers with less channel degradation, prevent

wasting system resource (power or throughput ) => achieving higher system capacity.

Signal Sent

Signal Received

MultipathMultipath

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Solar powered WiMax

• solar-powered WiFi router/WiMax router/surveillance cam that can be situated a top a streetlight. The access point may uses a high gain omni antenna and a high gain parabolic antenna to provide access/security to both developed and developing regions; it is already in use in Cameroon, with plans for deployment to India, China, and Morocco.

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Infrastructure

Family of Micro & PICO

WiMAX Base Station

&WiMAX Service

EdgeNetwork

Devices

Family of

USB dongle,PCM CIA,

Home Terminal Handset

& Dual Mode

GSM/Wimax Hnadset

Core

Edge & Core IP NW Equipments

Content Delivery

Gateways

Site

Exploit Acquired &

existing GSM sites For

POWER TOWER & Fiber

backhaul

Backhaul

Use Wireless& Fiber

Backhaul

Passive Infra

sharing and

Leasing

IT

OSS / BSS Development & Integration

CRM

Operations

Maintenance

Support & Warranty

Subscriber Acquisition

Marketing

G&A

Business investment model for WiMAX Services launch

•Covers all aspects of Network design, deployment and integration

•From the core through the systems architecture, service edge, access network, device, & operations

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Application Classes

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Market Models

WiMAX Benefits

Small Wireless ISPs Lower Network CapEx

Hot Spot Providers Lower backhaul OpEx

Wireline / ILECsDSL fill-in. Cost effective coverage of low density areas

Cellular OperatorsNomadic/Mobile broadband data services competitive with wireline

Cable Providers Broadband data service to businesses

Large ISPsAlternative last mile to compete with ILEC broadband services

New Entrants (e.g. Utilities, Railroads, Retailers)

Leverage existing assets to deliver broadband service

Satellite Need alternative last mile for uplink

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Population: 1.15 Billion peopleIndia’s Tele-density

- Overall: 31%Rural: 8.8% Urban: 65% Broadband: 0.4%Internet: 4%

500 Million phone connections by year 2010

High GDP Growth-8%Increased Income of middle

class(300M)PC Penetration: 2%

The Opportunity in IndiaThe Opportunity in India

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Web was “invented” by Tim Berners-Lee (amongst others), a physicist working at CERN

His vision of the Web was much more ambitious than the reality of the existing (syntactic) Web:

This vision of the Web has become known as the Semantic Web

“… a set of connected applications … forming a consistent logical web of data …”

“… an extension of the current web in which information is given well-defined meaning, better enabling computers and people to work in cooperation …”

What is the Semantic Web?

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“When Technology meets Business”

Strategic Vision

Wireless &

Technology

Wireless Strategies and the

Digital Community Solution

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34

Market & Time Competition

Marketing HypeMarketing Hype

DisappointmentDisappointment

Rebuild Business ModelRebuild Business Model

Steady GrowthSteady Growth

Market takes time! Markets takes time to mature;

most new services will follow the letter “N” curve as below

Fixed WiMAX technology is far from mass adoption, mobile WiMAX would take even longer

WiMAX has risks too! Mobile WiMAX market is squeezed by

both 3G, Flash OFDM, and WiFi. 802.11e, 11r, and 11n are enhancing

QoS, handover, and throughput. HSDPA (of 3G) shorten the gap with

WiMAX in throughput. Flash OFDM (by Flarion) has

demonstrated end-to-end solution.

WiMAX Marketing GuyWiMAX Marketing Guy

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Operational scenario for ‘User not registered,

no roaming agreement’

NO user SP

RoamRqt

RoamAck

P4

Roaming agreement

AuthRqtSPNO

AuthAckSPNO

P3

NO-SP authentication

CapsRqt

CapsInfo

P2

InitAuthRqt P1

P5a delegate control to NO

user-network authentication

PresAuthMech P1

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The message flow corresponding to the authentication protocol:

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Vs CDMA 2000

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WiMAX Demonstration Complete

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Typical Testing Scenario

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Test Bench BasicsMobile WiMAX DL Transmitter Test Bench

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High-speed measurement challenges ?

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WiMAX vs. McWiLL in China Multicarrier Wireless Internet Local Loop (McWill).

•China is testing a potential rival to WiMax, based on SCDMA (still used in China in the 400-MHz band)

•The technology is known asMulticarrier Wireless Internet Local Loop (McWill).

•It has been in field trials in a few Chinese cities, including Guangzhou and Qingdao, where it has been used for video, voice and data 

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Emerging Market GovernmentsFavorable regulatory environment

Favorable policiesSpectrum allocationOutside investment

Policies

Business & Consumers Telecommunications services

Internet access Web applications

Information

Demand

Broadband Internet AccessBroadband Internet AccessNational Prosperity ImperativeNational Prosperity Imperative

Business

Education

Consumers

Health

Bridging the Digital Divide Bridging the Digital Divide Demand and Policies ConvergingDemand and Policies Converging

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Supply Chain Processes Overview

MAKE

Make Product

Enable Make

ORDERMarket Product

SOURCE

Source Product

Enable Source

DELIVER

Deliver Product

Enable Deliver

PLAN

Plan Supply Chain Enable Plan

Su

pplie

rs

Cu

sto

me

rs

RETURN

INDUSTRY RETURN

Customer-oriented, process-based, building partnerships and sharing information

Integrated high-efficiency and open supply chain with advanced IT tools

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MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc. 2008.

WiMAX

HSDPA

EV-DO

UMTS

EDGE

CDMA 1X

GPRS

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 (MB)

60 kbps

115 kbps

256 kbps

400 kbps

1.0 Mbps

4.0 Mbps

35 kbps

Total Time

11.5 mins

6 mins

2.5 mins

1.5 min

40 secs

10 secs

19.5 mins

aacPlus v232 kbps

aacPlus64 kbps

AAC/WMA128 kbps

MP3160 kbps

The Need for Speed

5.5 Mbps 7 secs

*Based on Motorola estimates

Average Data Transfer Rates

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The tender for procurement of WiMAX equipment for Punjab & Kerala Circle has been issued on 4/10/2008.

1600 BTSs will be procured through this tender.

Around 8 lakhs CPE will be procured . The tender will cover rural & urban areas of

Punjab & Kerala.

Punjab & Kerala TenderPunjab & Kerala Tender

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India is one of the strongest and fastest growing Economies in World.

Indian Telecom sector is growing at an explosive pace with highest growth in wireless users

Growth in broadband in India will lead to massive opportunities for broadband wireless technologies such as WiMAX

Government of India fully supports growth of all technologies and will provide necessary regulatory framework to promote and facilitate such growth

SummarySummary

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SPECIFIC ABSORPTION RATE ( SAR ) IN COMMUNICATION SYSTEMS

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Related Work Cell Phone Radiation is Absorbed More Deeply Into the Brains of Children

Estimation of the absorption of electromagnetic radiation from a cell phone based on age (Frequency GSM 900 Mhz) (On the right, color scale showing the Specific Absorption Rate in W/kg)

Gandhi, O.P.G. Lazzi, and C.M. Furse, Electromagnetic Absorption in the Human Head and Neck for Cell Telephones at 835 and 1900 MHz. IEEE Transactions on Microwave Theory and Techniques, 1996. 44(10): p. 1884-1897

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Thank You

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Thank youThank you

[email protected]

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• [1] IEEE 802.16-2004 October 2004, Air Interface for Fixed and Mobile Broadband Wireless Access Systems - Amendment for Physical and Medium

Access ControlLayers for Combined Fixed and Mobile Operation in Licensed Bands, August

2004.

• [2] IEEE 802.16e-2005 March 2006, Physical and Medium Access Control Layers for Combined

Fixed and Mobile Operation in Licensed Bands.

• [3] Allen H. Kupetz and K. Terrell Brown, “4G - A Look Into the Future of Wireless

Communications”, Rollins Business Journal, Jan-Mar 2004

• [4] B. G. Evans and K. Baughan, "Visions of 4G," Electronics and Communication Engineering

Journal, Dec. 2002.

• [5] Jun-seok Hwang, Roy R. Consulta, "4G Mobile Networks – Technology Beyond 2.5G And

3G", PTC’07 Proceedings-2007.04/09/23 57