Powered by SMC Taiwan – Acctran Page 1 First Release Date 2002/09/12 Last Modify Date 2002/09/12 新世代無線網路新趨勢 Pogo Tsai Brand Marketing Division [email protected]

Powered by SMC Taiwan – Acctran Page 1First Release Date 2002/09/12Last Modify Date 2002/09/12

新世代無線網路新趨勢

Pogo Tsai

Brand Marketing DivisionBrand Marketing Division

[email protected]

Powered by SMC Taiwan – Acctran Page 2

WW WLAN Market TrendWW WLAN Market Trend

0

5,000

10,000

15,000

20,000

25,000

2001 2002 2003 2004 2005

WLAN Base station

WLAN NICWLAN growth up to 60% in 200133.4% CAGR growth expected through 2005

Source: IDC, Feb-2002 Unit: thousand


Wireless LAN System MarketWireless LAN System Market Comparison of WLAN Market Comparison of WLAN Market ForecastsForecasts

WLAN market: a fast growing marketM

io u

nits


WLAN Chipset StandardWLAN Chipset Standard

US$M

Source: Cahners In-Stat/MDR, 3/2002


Wireless Protocol StandardsWireless Protocol Standards

1000 m

10 m

100 m

1 Mbs 54 Mbs10 Mbs

Data Rates

Distance

WPAN

WLAN


Wireless LAN ApplicationsWireless LAN Applications

Wireless LAN

VerticalInventory Control

Datarate: 1-11 Mbit/s

Wireless BridgesDatarate: 11- 54 Mbit/s

Enterprise Wireless Ethernet

Datarate: 11- 54 Mbit/s

ConsumerDatarate: 11- 54 Mbit/s


902MHz26MHz BWCrowdedWorldwide limited

2.4GHz83.5MHz BWAvailable worldwideIEEE802.11 WLANs

5.1GHz300MHz BW

discontinuousDeveloping

Source: Harris Semiconductor

902 928

North & South America902MHz

2400 250024802440

Americas, most of Europe

France

Spain

Japan2.4GHz

*Frequency Allocations are pendingU-NII: Unlicensed National Information Infrastructure

5100 5200 5300 5400 5500 5600 5700 5800 5900

U-NII

EuropeHiperLAN1

U-NII

EuropeHiperLAN2*

Japan*

5.1GHz

Unlicensed Operation Unlicensed Operation RF BandsRF Bands


IEEE 802.11x StandardIEEE 802.11x Standard

Extension Scope

802.11a 5 GHz OFDM PHY spec.

802.11b 2.4 GHz DSSS PHY spec.

802.11d 2.4 GHz Regulatory Domain Update

802.11e QoS supporting broad range of applications such as voice, video conferencing, and streaming video

802.11f IAPP (Inter Access Point Protocol)

802.11g 2.4 GHz higher rates (22Mbps)

802.11h MAC and PHY enhancement of 802.11a Enables regularity acceptance of 802.11a products in Europe

802.11i Security – server based authentication; New security encapsulation based on AES

Source: Envara


從晶片發展看無線網路驅勢從晶片發展看無線網路驅勢


802.11a 802.11a 的優勢 – 涵蓋率及速度的比較的優勢 – 涵蓋率及速度的比較

AP

-50 ft 0 ft 50 ft 100 ft 150 ft 200 ft

0

50

100 802.11a

0

50

100802.11b

AP

Rate(Mbps)

05

1015

20253035404550


802.11a 802.11a 的優勢 – 的優勢 – SMC 802.11a Turbo ModeSMC 802.11a Turbo Mode

• 在不需完全用掉 802.11a 不互相干擾的 8 個 Channel 時, SMC 能把 8 個 Channel 結合成為 3 個 72Mbps 的高速 Channel 運作

3640444852566064

425058

8 20MHz Channels

3 40MHz Channels

TurboTurbo


802.11a 802.11a 的優勢 – 的優勢 – Data Rate Data Rate 的比較的比較D

ata

Lin

k R

ate

(M

bp

s)

Range (ft)

Optimal Data Link Rate in Office Environment

0

10

20

30

40

50

60

0 50 100 150 200 250

802.11a802.11b

0

10

20

30

40

50

60

0 50 100 150 200 250

802.11a802.11b

0

10

20

30

40

50

60

0 50 100 150 200 250

802.11a802.11b

~5x

~3x

- SMC 802.11a’s supported link rates that are 2 to 5 times

-802.11b at the same distance when tested to 225 feet .


IEEE 802.11 TopologyIEEE 802.11 Topology

• Independent Basic Service Set (IBSS)• Extended Service Set (ESS)

IBSSAP

AP

ESS

BSS 1

BSS 2

Distribution System


Roaming (Inter Access Point ProtocolRoaming (Inter Access Point Protocol))

Purpose:To make access point devices from different vendors to interoperate across a network to keep connection/session alive.

Any wireless client moving from one BSS (Basic Service Set) to another BSS required a handover process to remain its connection.

IAPP is an official protocol proposed by IEEE 802.11 group to provide the “reassociation” between APs


•Point to Point

•Point to Multi-point

Access PointMaster Bridge

APWireless Bridge

Bridging Access PointBridging Access Point

AP

Wireless Bridge


Security: 802.1X ModelSecurity: 802.1X Model

Associate

EAP Identity Request

EAP-Success

STAAPAP

Authentication Server

EAP Auth Response EAP Auth Response

EAP Auth Request EAP Auth Request

EAP Identity ResponseEAP Identity Response

Authentication traffic

Normal Data

Port Status:

EAP-Success


Market: Indoor InfrastructureMarket: Indoor Infrastructure

Internet

Wireless Broadband

Router

WirelessGateway

Wireless PC CardMini-PCI Adapter

Wireless PCI Adapter

USB-Wireless Adapter

Access Point

For Home, SoHo,

Enterprise


Market: Public Hot-SpotMarket: Public Hot-Spot

Billing Systems( Access,

Authentication, Accounting)

Billing Systems( Access,

Authentication, Accounting)

Control GatewayControl Gateway

User

InternetInternetInternetInternet Secured IP Enterprise

Group

Secured IP Enterprise

Group

Access PointAccess PointAccess PointAccess Point

Airports, Hotels, Cafes,

Restaurants, …

Airports, Hotels, Cafes,

Restaurants, …

3/1/2002 In-Stat: Public Area Access, Hot-spot locations(airport, shopping mall, coffee bars, hotel) in US will grow from 3,700 to 41,000 by 2007, Over 21 million users, generates over U$3 billion in service revenues. (from $1.1m in 2000)


Security and The Internet Security and The Internet ConnectionConnection

Corporate Network

Internet

Solution: protect the network with a firewall

Solution: put the traffic through an encrypted tunnel

Problem: external connection to the Internet

attack

attack

Problem: traffic flowing through public Internet

attack

atta

ck

Corporate Network


The Wireless EffectThe Wireless Effect

Corporate Network

The Blurry Edge!The Blurry Edge!

You need firewall and encryption here!You need firewall and encryption here!

But remember that users move from here to here to here ..But remember that users move from here to here to here ..

Internet


SMC WLAN Security System SMC WLAN Security System 的認証原理與架構的認証原理與架構

Control Server/Rights Manager

Access Manager

CORPORATE LAN

AuthenticationServer

INTERNET

Access Manager

Client appears, requests network access

Access Manager asks Control server for ok and appropriate rights

Control Server requests login information from client

Control Server authenticates user viacustomer’s authentication server

Control Server gives user rights to Access Manager for enforcement

Client proceeds with network activity


SMC WLAN Security System SMC WLAN Security System 的漫遊機制的漫遊機制

Control Server/Rights Manager

Access Manager

CORPORATE LAN

AuthenticationServer

INTERNET

Access Manager

Client has an active session

Client moves to a new Access Manager

Access Manager verifies user existenceand rights with Control Server

Control Server coordinates Access Manager-to-Access Manager communication

Existing sessions maintained via tunnels

New sessions connected via new Access Manager


Market: Outdoor BackboneMarket: Outdoor Backbone

Internet Access Anywhere• Fixed Wireless Broadband Network• Last Mile Connection


Internet

*Sender**Sender*

Set-Top-Box(802.11a)

*Receiver**Receiver*

A/V Converter(802.11a)

Internet Movie

Projector

Consumer Electronics/Home Networking5GHz for streaming multiple video channels around the house: TV, gaming machines, PCs, video, stereo systems can all interconnecting without wiring systems

Application: Home EntertainmentApplication: Home Entertainment


Application: Metro Area NetworkApplication: Metro Area Network

Fiber

Fiber

BusinessesHomes

PublicAccess

Fiber

Campus


Thank You !!Thank You !!

Q & AQ & A

Documents

Powered by SMC Taiwan – Acctran Page 1 First Release Date 2002/09/12 Last Modify Date 2002/09/12 新世代無線網路新趨勢 Pogo Tsai Brand Marketing Division [email protected]