class 11 local area networks content wifi roaming in the middle east special topic: wifi roaming in...

Class 1 1

Local Area Networks

Content

Special Topic: WiFi Roaming in the Middle EastWiFi Roaming in the Middle East

635.412 Spring 2005 Class 1: Introduction to LANs & WANs

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WiFi and Roaming: basic concepts.

WiFi Market Overview in the Middle-

East.

WiFi Roaming: an opportunity and a

need.

How to roam?

Turnkey WiFi Roaming Solutions.

Agenda


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Wireless Fidelity

A technology to provide Wireless LAN service

Allows access to private networks and to the public Internet

Radio technology (2,4 - 5 GHz), based on IEEE 802.11 specs

High bandwidth (several MBit/sec) but low coverage (<300m)

What is WiFi?


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Public Hotspot:A location equipped with a WiFi network for access

to the publicInternet.

Can either be free, or for a fee. Can be pre-paid or post-paid access fee.

Private Hotspot:A location equipped with a WiFi network for access

to a privatenetwork.

Home Hotspots. Company Hotspots.

What is Hotspot?

Hotspot


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Provider A’s Hotspot in France

Gas station

Provider B’s Hotspot in the Lebanon

Coffee Shop

HotelProvider C’s Hotspot in Asia

The traveling end user wants to access the Internet through domestic and internationally based hotspots. But he has only an account with the blue provider B.

Roaming would allow this end user to access the Internet through his home account while using Hotspots not belonging to his home provider.

What is WiFi Roaming?


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Operate Hotspots Don’t “own” end-customers Don’t bill end usersExamples:

Kubiwireless in Spain The Cloud in the UK

Don’t operate Hotspots Have a large customer base Bill the end usersExamples - Providers are typically:

ISP’s like T-Online, Wanadoo, etc Mobile Operators like Optimus, etc.

T-Mobile in Germany and the US, SFR in France, OTENet in Greece, Telefonica in Spain, etc.

Who are the Players of the Hotspot Market?

WISPs Providers

Both: WISPs + Providers


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WiFi and Roaming: Basic Concepts.


East.

WiFi Roaming: An Opportunity and A

Need.

How to Roam?


Agenda


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*Source: Gartner Dataquest 2003

WiFi is experiencing significant growth, driven by cost and convenience factors.

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

Nu

mb

er o

f P

WL

AN

loca

tio

ns

2002 2003 2004 2005 2006

Number of Public WiFi locations by region to 2006

Rest of World

North America

Asia Pacific

EMEA

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

$ m

illio

ns

2002 2003 2004 2005 2006

Revenues from Public WiFi services by region to 2006

Rest of World

North America

Asia Pacific

EMEA

Market Trends


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0

2

4

6

8

10

12

14

16

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2003 2004 2005 2006 2007 2008

Pub

lic W

LAN

Rev

enue

s ($

m)

0

100

200

300

400

500

600

700

800

Num

ber

of H

otsp

ots

PWLAN revenues ($ million) Number of PWLAN hotspots

Number of Hotspots in Middle EastGrowth in Public WLAN in the Middle East, 2003-2008


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Drivers for WiFi rapidly growing deployment: Rapidly improving components (smaller, faster, cheaper) All new laptops are WiFi enabled (Centrino processors) Relatively low risk and low cost of deployment Source of differentiation b y offering an innovative VA service Mobility of workforce

In the Middle-East most WISP’s, Carriers, Mobile Operators and ISP’s are implementing WiFi strategies.

Market Trends


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East.


Need.

How to Roam?


Agenda


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You are a WISP

hotspot

At the hotel

At the airport

hotspot

You are a WISP, operating one or several hotspots.

Roaming

partner A

Roaming

partner B

Roaming

partner C

First Opportunity: Revenues through ‘In-Roaming’

How to Improve your Revenue? Allow Customers of various providers to use your Hotspots through WiFi Roaming agreements


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You are a

Provider

WISP

hotspot hotspot

WISP

hotspot hotspot

WISP

hotspot hotspot

Second Opportunity: Revenues through ‘Out-Roaming’You are a Provider, typically an ISP or Mobile Operator.How to Improve your Revenue and ARPU? Allow your Customers to use Hotspots of various WISPs through WiFi Roaming agreements


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WiFi Roaming: A Need

Hotspot operators (WISP’s) need customers to use their Hotspots! ISP’s and Mobile Operators need Hotspots for their customers!

No one has WiFi a worldwide coverageThere is a need for international WiFi Roaming This is similar to the GSM Roaming concept.

Most countries are not monopolistic for WiFiThere is also a need for in-country WiFi RoamingThis is different from GSM Roaming concept.


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East.


Need.

How to Roam?


Agenda


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100 players means nearly 5000

connections !WIS

P

WISP

WISP

WISP

Mobile

Mobile

Mobile

ISP

ISP

ISP

ISP

How to Roam: First PossibilityNegotiate Multiple Bilateral Agreements for Roaming


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Clearing-House solution

WISP

WISP

WISP

WISP

Mobile

Mobile

Mobile

ISP

ISP

ISP

ISP

How to Roam: Second PossibilityUse a Single Clearing-House for Multiple Roaming Possibilities


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How to Roam: What Strategy?

Clearing-House Solutions for WiFi Roaming are used to reach many players (WISPs and/or Providers) through one agreement.

Easy and cheap! Only one agreement is necessary, and the solutions on the market provide billing, clearing, etc.

Bilateral WiFi agreements for WiFi roaming are in general used for strategic partnerships.

For example large European Mobile operators are signing bilateral agreements for WiFi Roaming.


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East.


Need.

How to Roam?


Agenda


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WiFi Roaming Solutions on the Market

Airpath Boingo GRIC iPass Picopoint WeRoam

…and many others…


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T-O

nlin

e

T-M

ob

ile

T-C

om

Deutsche Telekom

T-S

yst

em

s

Fixed N

etw

ork

A

ccess

Inte

rnet

Serv

ice

Pro

vid

er

Mobile

C

om

munic

ati

ons

IT &

TC

solu

tions

(ITC

)

The divisions of Deutsche Telekom Four-division Strategy


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T-Systems’ WiFi Roaming SolutionBenefits

Potentially millions of additional end customers, but through only one connection, one contract, one bill. Great value added service to differentiate form competition. No initial investment in most cases, no monthly fee. Strong R & D resources: customized solutions available Additional revenues.

And the guarantee of a stable and a long lasting partner.

Benefits for WISPs, ISPs and Mobile Operators

Benefits for End-Users:

Easy, fast and highly secure access worldwide. Usage of home provider Login and Password. Post-paid invoicing by the home provider.


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T-Systems‘ WiFi Roaming SolutionFootprintWe Target by end 2004:

WISP: over 10 000 Hotspots. ISP’s and Mobile Operators: over 100 million users.

Current Partners of T-Systems’ Roaming Platform:

Providers: T-Mobile, T-Online, Eplus, DNA, etc. WISP: T-Mobile, Berlinet, Viewquest, Airnix, Frankfurt Airport, etc.

…and we are in contact with most of the players in the Middle East.

We also focus on strategic presence: Events: Eurocup in Portugal, Olympics in Athens, etc. Locations: Airports, Hotels, Congress centers, etc.

…and we are CBB’s first partner you can surf while flying!!


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Farah FadiT-Systems International

Fadi FarahInternational Carrier Sales & Solutions T-Systems InternationalPhone: +33 6 15 36 54 12 E-mail: [email protected]


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WiFi Roaming

Back-up slides


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T-systems

Buys from WISPs access to their hotspots

Sells to ISPs and Mobile Operators, access to WISP hotspots

Buying and Selling of Online Minutes.

WLAN Roaming Platform

Selling ofWLAN

Minutes

Buying ofWLAN

Minutes

Provider

Provider

Provider

WISP

WISP

hotspot

hotspot

hotspot

hotspot


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Authentication: Information Flow.

WISP

Provider2

Hotspot

AccessCube

Access Points

User Lapto

p

1

3

WLAN Roaming Platform

1

2

3

Legend

WLAN AuthenticationWLAN Authorization

Internet

Internet Traffic


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Billing: Financial flows.

Money flow

WLAN Roaming-Platform

Provider

e.g. GSM carrier

e.g. ISPs

Legal relationship

WISP

Clearing-House pays WISP their share

€/$

€/$

End-user pays his provider/carrier

€/$


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General Course Information

Instructor Info General & University Info Book & Course Material Course Schedule Grading & Exams Homework


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Overview of LANs and MANs

The Need for Networking– Driven by the decreasing cost of computer hardware

and the dramatic increase in its capabilities– Factors driving the creation of a new set of advanced

desktop applications (with more on the way): Image Processing Speech Recognition Videoconferencing & Multimedia

Three characteristics are of greatest use in classifying communication networks :– Geographic Reach – Topology– Transmission Medium


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LANs, MANs, and WANsClassification based on Geographic Reach

Characteristics of Wide Area Networks (WANs)– Large Geographic Area– Requires the crossing of public right-of-ways– Partially or fully relies on common carrier circuits– Slower speeds than LANs & MANs, although the spread

of fiber optic facilities is beginning to change this– Examples of WAN technologies:

ISDN (BRI & PRI) SONET Frame Relay ATM


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Comparison


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LANs, MANs, and WANsClassification based on Geographic Reach

Characteristics of Local Area Networks (LANs)– Small Geographic Area– A LAN is completely owned and operated by a single

organization– The data rates of a LAN are usually an order of magnitude

higher than a WAN

Characteristics of Metropolitan Area Networks (MANs)

– Occupy the middle ground between LANs and WANs– MANs typically adapt and extend LAN technologies to cover a

larger geographic area– Have provided greater bandwidth at lower costs within

metropolitan areas


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LANs, MANs, and WANsApplications

Personal Computer Local Networks– Even with the proliferation of low cost PCs that allow

staff members to do their own processing, there are still important reasons for networking these computer systems

File and data sharing Share expensive network resources (printers, storage,

etc.) Real-time and near real-time collaborative efforts Easy file and data protection (networked backups)

– Financially, the networking of low-cost PCs usually necessitates a low cost network technology


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Back-end & Storage Area Networks (SANs)– Used in large computer installations (e.g. mainframes)– Key requirement is high-speed bulk data transfer

between a small number of systems in a limited area– Unlike traditional server-attached storage, SANs provide

storage attached directly to the network (Increases efficiency)

– Key reasons for implementing a SAN Online backup systems Load leveling across multiple systems (storage ‘farms’) Wider accessibility of large amounts of data

– These requirements drive SANs to high bandwidth and high cost installations


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High-Speed Office Networks– Newer (particularly multimedia) applications are driving

the development of higher speed LANs that are replacing the older PC Local Networks

– Use different technologies than SANs because they are meant to service a larger number of systems dispersed over a wider area


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Backbone Local Networks– Diverse requirements in typical organizations have led

to the adoption of a multi-tiered LAN architecture– Advantages of the multi-tiered LAN over the single-LAN

architecture Greater reliability Greater capacity Lower overall cost

– The core of the multi-tiered LAN architecture is the backbone -- a high bandwidth network connecting together lower-speed, lower-cost LANs

– If the organization is geographically dispersed the backbone may be a MAN


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LANs, MANs, and WANsLocal Network Architecture

Information Distribution– When setting requirements for a network installation,

user traffic patterns must be explored What type of data will traverse the network? How is this data distributed? What is to be connected (PCs, servers, mainframes, all of

the above, etc.)?– As mentioned earlier, a multi-tiered network is typically

the best approach to meeting organizational needs Typically a two or three tiered architecture is used Usually evolve in one of two ways, depending on how

centralized the organization’s IT rules are:– Bottom-up– Top-down


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LANs, MANs, and WANsLANs, WANs, and the Internet

Most organizations are geographically distributed & must deal with connecting together widely dispersed LANs

Most organizations have two choices for WAN connectivity– A private WAN– A public network or the Internet


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LANs, MANs, and WANsLANs, WANs, and the Internet

A private WAN– Provides a dedicated connection from leased lines or a similar

service– Good for security & sites with high & predictable inter-site

traffic– Can be expensive, especially for smaller organizations & sites

A public network or the Internet– Provides an inexpensive & quick solution for connectivity– Can also provide an access path for mobile workers– Performance is an issue with real-time traffic or large data

transfers– Virtual private networks (VPN) used to address security:

Encapsulation & tunneling are the key concepts IPsec is an example of a network layer VPN technology


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