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WiMAX Networks
Terry WasonRegional Sales Director, India and S Asia, Wi-LAN Inc.
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Agenda
Wireless StandardsWhat is WiMAX?
What is the state of WiMAX today?
WiMAX: A practical application ISP CaseStudy
Pre WiMAX Equipments
Migration to WiMAX
Summary
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Standards
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802.16: 256 OFDM (vs. 64
OFDM)
3.8 bps/Hz peak data rate; Up to 75 Mbps
in a 20 MHz
5 bps/Hz bit rate; 100 Mbps in 20 MHz
channel
2.7 bps/Hz peak data rate; Up to 54
Mbps in 20 MHz channelBit rate
802.11: contention-based MAC
(CSMA)
802.16: grant request MAC
QoS designed in for voice/ video,
differentiated services
No QoS support today -> 802.11e
working to standardizeQoS
Only 3 non-overlapping 802.11b
channels; 5 for 802.11a
802.16: limited only by
available spectrum
Channel b/w is flexible from 1.5 MHz to
20 MHz for both licensed and license
exempt bands
Frequency re-use
Enables cell planning for commercial
service providers
Channel bandwidth for 20 MHz is
fixedScalability
802.16: 256 OFDM (vs. 64
OFDM)
Adaptive modulation
802.16 PHY tolerates 10 more
multi-path delay spread than
802.11
Technical Explanation
Optimized for outdoor environments
(trees, buildings, users spread out over
distance)
Standard support for advanced antenna
techniques & mesh
Optimized for indoor environmentsCoverage
Optimized fortypical cell size of 7-10 km
Up to 50 km range
No hidden node problem
Optimized for users within a 100
meter radius
Add access points or high gain
antenna for greater coverage
Range802.16802.11
How do 802.16 and 802.11
Differ?
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1980s 1990s 2000
Volume
Ethernet
2010
Wi-Fi*
Formula:
Existing Market withProprietary Solutions
IEEE Standard
Low Cost Manufacturing Available Spectrum (wireless)
Standards & InteroperabilityThe Path to Volume Economics
*Other names and brands may be claimed as the property of others.
802.16(2004)/e
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What is the origin of WiMAX?
WiMAX was formed in April of 2001 as an industrygroup to promote conformance and Interoperability ofIEEE 802.16-2001 Broadband Wireless Accessproducts.
Founding organizations; Ensemble, CrossSpan, Harris,
and Nokia Remained at four members until the OFDM Forum, April
of 2002, and Fujitsu, November of 2002, became the fifthand sixth members respectively. It was not until March of2003, after strong lobbying efforts by Wi-LAN and Fujitsu,that Aperto, Alvarion, Airspan, Intel, Proxim and othersfinally joined the Forum.
The Forum has now over 200 members with strongrepresentation from Service Providers, SystemManufacturers, chip vendors, and eco-system players.
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WiMAX Forum Charter
Lead the global harmonization of broadband wirelessstandards
Assure WiMAX Forum is considered the thought leaderfor broadband wireless
Facilitate the development of WiMAX ecosystems andoverall network architecture
Foster cooperation among service providers, contentproviders, system integrators, standard bodies andregulators, and component vendors
Promote acceptance of WiMAX Forum Products byservice providers worldwide
Develop process to certify compatibility andinteroperability of broadband wireless products
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Why is WiMAX a big deal?
WiMAX Forum Vision: Create a global mass market for deployment of
broadband wireless networks that will enable fixed,
portable and mobile users to maintain high-speed
connectivity wherever they go.
To lead the access anywhere revolution supporting
delivery of data, voice and video applications at
home, in the office and on the go.
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What does this mean, really?
First truly international Global interoperable broadband
wireless standard, right from the start:
Market is Global in size
More level playing field for new and incumbent vendors
as well as service providers
Service providers can deploy several vendors equipment
in the same network; the equipment will interoperate
This is the vision Wi-LAN had when it became involved
with the WiMAX Forum in late 2001 / early 2002
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WiMAX: How will it compare?
T I M E
Satellite Network
Telephone Network
Internet
IP Based Access Network
Wi-FiHotspot
OFDM-ba
sed
Backha
ul
Pedestrian Speeds, 11Mbps,
Lightweight, Limited Coverage
OFDM or WiMAXBase station
WiMAX
Ba c k
ha u l
Vehicular Speeds, 20 Mbps, Power
Source, Heavy, Limited Coverage,
Specialized Applications
WiMAX
Base station
WiMAXBac
khaul
Vehicular Speeds, 20 Mbps,
Lightweight, Full Coverage
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ISP Case Study
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Background Information
Build networks, provide network
services. ie. capacity,management
Vantaa case: Manufacturer of
2.4GHz APs
Network operator. Owns 3.5 and2.4 GHz nets in Vantaa
ISP for Vantaa and Jyvskyl.
Owns Jyvskyls 3.5 GHz net
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WLL = Wilan BWA 3500 products (3500 and
3540) CPEs and APsCPE = CPE3500 or Libra
11b: = 2.4 GHz Access Point/ base station
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All over Finland
Network supervision and maintenance 24 hall over the country
38 main stations
200 masts
1000 transmitters
MW-radio link networkcoverage of over
30 000 sq km
C t t k i Wil
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Current networks using Wilan
technology
11 WLL -Site, 1-4 sector each = 29 sectors (29 APs).
about 115 CPE units at this time
115 WLAN (2,4 GHz) BTS. Each BTS have 1-4 cell
(radio card)=> total ~400 WLAN cell
Total coverage of people of Vantaa 53%
ISP: Vantaa Energy (Using Tele2 Internet services)
512/512, 39.90. 1024/1024, 59.90 . Including mail,
web, VPN-tunneling, free WLAN signal testing.
VANTAA: Vantaa Energy ltd. [www.wivanet.com]
http://www.wivanet.com/kartta_v1.html
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Sectors
4 km
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Vantaa: Wivanet
WLAN
WLL; Core- & Access Network
IP-transmission network
TELE2; ISP Internet
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What next?
T I M E
Satellite Network
Telephone Network
Internet
IP Based Access Network
Wi-FiHotspot
OFDM-b
ased
Backha
ul
Pedestrian Speeds, 11Mbps,
Lightweight, Limited Coverage
OFDM or WiMAXBase station
WiMAX
Ba c k
ha u l
Vehicular Speeds, 20 Mbps, Power
Source, Heavy, Limited Coverage,
Specialized Applications
WiMAX
Base station
WiMAXBac
khaul
Vehicular Speeds, 20 Mbps,
Lightweight, Full Coverage
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Broadband Mobility
Field Trials
Mobile Unit
Videostreaming/ File transfer
20Mbps @160kmph
Base Station
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Catalyst for Broadbandin Mass Transit
Security Surveillance video cameras
Vehicle location
Operations
Sensors for traffic & environment
Emergency facilities
Real-time traffic management
Passenger Services
High-speed Internet access
Automated advertising & signage
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Seoul Trial, Korea
Seoul Highway
High Speed Hand-off
Speed ~80 km/hour
18 Mbps or 4 Video Streams
Seoul Subway
Severe Multipath Environment
Speed ~ 70 km/hour
Single AU, No-Handoff
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Anytime, anywhere, always on
T I M E
Satellite Network
Telephone Network
Internet
IP Based Access Network
Wi-FiHotspot
OFDM-b
ased
Backha
ul
Pedestrian Speeds, 11Mbps,
Lightweight, Limited Coverage
OFDM or WiMAXBase station
WiMAX
Ba c k
ha u l
Vehicular Speeds, 20 Mbps, Power
Source, Heavy, Limited Coverage,
Specialized Applications
WiMAX
Base station
WiMAXBac
khaul
Vehicular Speeds, 20 Mbps,
Lightweight, Full Coverage
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WiMAX - Beyond the Hype
FACT: There are no WiMAX networks today
FACT: There are no WiMAX Forum Certifiedproducts available today
FACT: WiMAX Forum Certified testing will beginlater this year
FACT: Vendors are shipping pre-WiMAXproducts today
Wh t b t WiMAX
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What about pre-WiMAX
products?
Without certification all pre-WiMAX or 802.16products should be considered proprietary
However, the migration strategy from currentpre-WiMAX products to WiMAX Forum
Certified product is very important
e.g. Wi-LANs Libra MX and Continuity Program
Guaranteed migration path to WiMAX ForumCertified Libra MX system
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Wi-LANs Migration Program
Wi-LANs commitment
Current W-OFDM CPEs will work in tomorrows WiMAX
compliant network.
No need to replace current W-OFDM CPEs
Network level WiMAX compatibility will be ensured
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Migration to WiMAX compliance
WiMAX CPEW-OFDM CPE
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Getting Beyond the Hype
Three questions to ask regarding WiMAXcertification claims:
1. At which WiMAX Forum certification test lab did
the equipment get tested?
2. For which WiMAX system profile?3. When did the equipment get certified?
Other questions:
With which other vendors equipment does theequipment interoperate?
In which certification wave did the equipment
get certified?
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Wi-LAN in Bangladesh
Wi-LAN has been selling in Bangladesh since 2000
Have presence in all metros and important cities
through the Gold Channel Partners, VARs, and
System Integrators
Customers base More than 100 customers, include all themajor ISPs, Corporates, Banks, Educational Institutes.
Total Deployment Nearly 500 radios in 2.4, 3.5
and 5.8 Ghz.
Have been growing dramatically, and are currently probably
the single largest brand of radios in Bangladesh.
SDNP internet exchange project using WiLAN Radios for
interconnectivity of ISPs to the IX.
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Summary
WiMAX is here to stayWiMAX is real; in spite of the hype
WiMAX will penetrate and capture significant
market share for broadband wireless accessWiMAX will grow and evolve the certification
process, base standards, and market
messaging as this industry grows
Wi-LAN is a thought and technology leader in
all of this
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Q & A