Wimax Networks

8/14/2019 Wimax Networks

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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


Wi-FiHotspot

OFDM-b

ased

Backha

ul




WiMAX

Ba c k

ha u l




WiMAX

Base station

WiMAXBac

khaul




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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


Wi-FiHotspot

OFDM-b

ased

Backha

ul




WiMAX

Ba c k

ha u l




WiMAX

Base station

WiMAXBac

khaul




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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

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