class 11 local area networks content wifi roaming in the middle east special topic: wifi roaming in...
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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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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.
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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*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
635.412 Spring 2005 Class 1: Introduction to LANs & WANs
10
0
2
4
6
8
10
12
14
16
18
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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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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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.
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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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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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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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: ffarah@t-systems.fr
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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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LANs, MANs, and WANsApplications
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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LANs, MANs, and WANsApplications
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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LANs, MANs, and WANsApplications
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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