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Chapter 6

TelecommunicationsandNetworks

Nitin Mehta (Roll no -33)Nitin Singhi ( Roll no.-34)Pankaj Tandon ( Roll no.-35)

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Identify several major developments and trends in the industries, technologies, and business applications of telecommunications and Internet technologies.

Provide examples of the business value of Internet, intranet, and extranet applications.

Identify the basic components, functions, and types of telecommunications networks used in business.

Explain the functions of major types of telecommunications network hardware, software, media, and services.

Chapter Objectives




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Trends in Telecommunications

More electronic commerce, enterprise collaboration,online business operations and strategic advantage in markets

More vendors, carriers, alliances, and network services, accelerated by deregulation & Internet growth

Extensive Internet, interconnected local & global digital networks, improved transmission channels

Industry Trends

Technology Trends

Application Trends




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Telecommunications Strategic Capabilities

Overcome Geographic Barriers: Capture information about business transactions from remote locations.Overcome Geographic Barriers: Capture information about business transactions from remote locations.

Overcome Time Barriers: Provide information to remote locationsimmediately after it is requested.Overcome Time Barriers: Provide information to remote locationsimmediately after it is requested.

Overcome Cost Barriers: Reduce the cost of more traditional means of communications.Overcome Cost Barriers: Reduce the cost of more traditional means of communications.

Overcome Structural Barriers: Support linkages for competitive advantage.Overcome Structural Barriers: Support linkages for competitive advantage.




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Internet Applications

Surf and E-mail

Internet Chat and

Discussion Forums

Download and Computer

Search Engines

E-CommerceTransfer

Protocol (FTP) and Telnet

Popular Uses of the

Internet

Popular Uses of the

Internet




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Business Value from e-Commerce Applications

Increase Customer Loyalty & RetentionIncrease Customer Loyalty & Retention

Reduce the Cost of Doing BusinessReduce the Cost of Doing Business

Generate New Revenue SourcesGenerate New Revenue Sources

Attract New CustomersAttract New Customers

Deriving BusinessValue from e-CommerceApplications

Deriving BusinessValue from e-CommerceApplications

Develop New Markets & ChannelsDevelop New Markets & Channels

Develop New Web-based ProductsDevelop New Web-based Products




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Basic Components in a Telecommunications Network

TelecommunicationsSoftware

TelecommunicationsSoftware

1

2 3

4

52

PCs, NCs, and Other Terminals

ComputersTelecommunications

Channels

TelecommunicationsProcessors




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Fixed access Nomadic access Full mobilitySimple mobility

TerminalRAN Bearing network Gateway

Accessing Service Network

Core network

Connecting Service Network

EMS

BOSS

iM2000

AAA HA

Application server & Internet

Datacom

Optical network

microwave

Good Selections for Different Network Capability and ScenariosTelecom Network Elements




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Types of Networks

WAN

MAN

LAN

PAN




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Internet/Extranet/Intranet




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Cellular vs WiMAXCellular vs WiMAX

Metric WiFi Edge WCDMA 1xEVDO(Rev 0)

802.16d 802.16e

Modulation OFDM TDMA WCDMA CDMAOFDM/OFDMA

Scalable OFDMA

Data Rate 54 Mbps 384 Kbps

2 Mbps (Max)

< 384 Kbps (Typ.)

2.4 Mbps (Max)

< 750 Kbps (Typ.)

75 Mbps (Max)

20-30 Mbps (Typ.)

30 Mbps peak for

2x2 MIMO, 10 MHz

Range (Avg. Cell)

100m2 - 10 km(outdoor)

2 - 10 km(outdoor)

2 - 10 km(outdoor)

3-5 km (outdoor)

3-6 km (indoor)6-10 km

(outdoor)

Spectrum 2.4 GHz800, 900,

1800, 1900 GHz

Various 1.7 – 2.2 GHz

Various 1.7 – 2.2 GHz

2 – 6 GHzLic. & Unlic

2 – 6 GHzLic. & Unlic

Channel BW 200 KHz 5 MHz1.25, 2.5, and 3.75

MHz

Scalable 1.5 – 20 MHz

Scalable 1.25 – 20

MHz

3 G3 G WiMaxWiMax




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Mobile/BroadBand Applications

Rural BroadbandDSL alternative, residential

voice service

Mobile Broadband/VoicePortable, nomadic and mobility

Community ApplicationsWiFi Hot Spots and security cameras

SME ServicesVoice , Data services, VPN and Video Conferencing

SEAMLESS CONNECTIVITY AT WORK, AT HOME, IN THE AUTO AND OUT IN THE WORLD




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Metro-wide Coverage

EnterpriseAccess

Rural Access

ResidentialAccess

Multi Story Access

Point-to-PointConnections

Broadband Applications




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Local Area Networks

NetworkServer

NetworkServerMDI

Shared Database and

Software Packages

SharedPrinter

PCY

PCX

PCNitin M

PCNitin S

PCPankaj

Internetwork Processor to Other Networks




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Wide Area Networks




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CaliforniaCalifornia NorwayNorway

BelgiumBelgium

Pennsyl-vania

Pennsyl-vania

ManitobaManitoba

British ColumbiaBritish

Columbia

ChileChile

Delhi Delhi

JapanJapan DominicanRepublic

DominicanRepublic

WideArea

Network

WideArea

Network

WAN




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VPNs




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Telecommunications Communication Media

• Twisted Pair• Coaxial Cable• Fiber Optics• Terrestrial Microwave

• Communication Satellites• Cellular Technologies• Wireless LAN




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Telecommunications Processors and Software

• Modems

• Multiplexers

• Fire walls

• Network Operating System

• Telecommunications Monitor

• Middleware

• Network Management Software




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Network Topologies




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The Internet’s TCP/IP

Application orProcess Layer

Internet Protocol (IP)

Host-to-Host Transport Layer

Network Interface

Physical Layer

ApplicationLayer

PresentationLayer

SessionLayer

TransportLayer

NetworkLayer

Data LinkLayer

PhysicalLayer

OS

I M

od

el




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Chapter Summary

Organizations are becoming internetworked enterprises that use the Internet, intranets, and other telecommunications networks to support e-business.

Telecommunications has entered a deregulated and fiercely competitive environment with many vendors, carriers, and services

A major trend is towards pervasive use of the Internet and its technologies to build interconnected enterprise and global networks.




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Chapter Summary (cont)

The major components of any telecommunications network are: Terminals, Telecommunications processors, Communication channels, Computers, and Telecommunications software.

There are several basic types of telecomm networks, including wide area networks (WANs) and local area networks (LANs).




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Chapter Summary (cont)

Key telecommunications network alternatives include telecommunications media, processors, software, channels, and architectures.

Thank You

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