Local Area Networks

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Local Area Networks

• Content
• Special Topic WiFi Roaming in the Middle East

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!"Systems
Arabcom 2004
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Agenda

• 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.

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What is WiFi?

• 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 (lt300m)

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What is Hotspot?

• Public Hotspot
• A location equipped with a WiFi network for
  access to the public
• Internet.
• 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 private
• network.
• Home Hotspots.
• Company Hotspots.

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What is WiFi Roaming?
Provider As Hotspot in France

• 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.

Gas station
Coffee Shop
Provider Cs Hotspot in Asia
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Who are the Players of the Hotspot Market?
Providers
WISPs

• Operate Hotspots
• Dont own end-customers
• Dont bill end users
• Examples
• Kubiwireless in Spain
• The Cloud in the UK

• Dont operate Hotspots
• Have a large customer base
• Bill the end users
• Examples - Providers are typically
• ISPs like T-Online, Wanadoo, etc
• Mobile Operators like Optimus, etc.

Both WISPs Providers

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

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Agenda

• 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.

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Market Trends
WiFi is experiencing significant growth, driven
by cost and convenience factors.
Source Gartner Dataquest 2003
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Number of Hotspots in Middle EastGrowth in
Public WLAN in the Middle East, 2003-2008
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Market Trends

• 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 WISPs, Carriers,
  Mobile Operators and ISPs are implementing WiFi
  strategies.

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Agenda

• 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.

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First Opportunity Revenues through In-Roaming
You are a WISP, operating one or several
hotspots.
How to Improve your Revenue? Allow Customers of
various providers to use your Hotspots through
WiFi Roaming agreements
You are a WISP
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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 (WISPs) need customers to
  use their Hotspots!
• ISPs and Mobile Operators need Hotspots for
  their customers!
• No one has WiFi a worldwide coverage
• There is a need for international WiFi Roaming
• This is similar to the GSM Roaming concept.
• Most countries are not monopolistic for WiFi
• There is also a need for in-country WiFi Roaming
• This is different from GSM Roaming concept.

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Agenda

• 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.

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How to Roam First PossibilityNegotiate Multiple
Bilateral Agreements for Roaming
100 players means nearly 5000 connections !
ISP
WISP
WISP
Mobile
Mobile
ISP
WISP
ISP
Mobile
ISP
WISP
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How to Roam Second PossibilityUse a Single
Clearing-House for Multiple Roaming Possibilities
Mobile
WISP
ISP
WISP
ISP
Clearing-House solution
Mobile
WISP
ISP
Mobile
WISP
ISP
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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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Agenda

• 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.

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WiFi Roaming Solutions on the Market

• Airpath
• Boingo
• GRIC
• iPass
• Picopoint
• WeRoam
• and many others

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The divisions of Deutsche Telekom Four-division
Strategy
Deutsche Telekom
Fixed Network Access
Internet Service Provider
Mobile Communications
IT TC solutions (ITC)
T-Mobile
T-Com
T-Online
T-Systems
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T-Systems WiFi Roaming SolutionBenefits
Benefits for WISPs, ISPs and Mobile Operators

• 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 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 SolutionFootprint

• We Target by end 2004
• WISP over 10 000 Hotspots.
• ISPs 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 CBBs first partner ? you can surf
  while flying!!

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Fadi Farah International Carrier Sales
Solutions T-Systems International Phone 33
6 15 36 54 12 E-mail ffarah_at_t-systems.fr
Farah Fadi T-Systems International
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WiFi RoamingBack-up slides
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Buying and Selling of Online Minutes.

• T-systems
• Buys from WISPs access to their hotspots
• Sells to ISPs and Mobile Operators, access to
  WISP hotspots

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Authentication Information Flow.
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Billing Financial flows.
Money flow
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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 organizations 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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