Randy Kendzior, Dell, Inc.

September 24, 2004

Wireless Technology DiscussionMassachusetts Digital Government Summit

Dell Confidential 2 of 23 Client Technologists

Wireless Networks – A Simple Overview

WPAN WLAN WWAN

Personal space Home, Campus, Hotspots Metros, Countries, Global

Attribute WPAN WLAN WWAN

Standard Bluetooth 802.11 GPRS, CDMA

Usage Model Cable replacementCampus connectivity,

public hotspotsAnytime / anywhere remote

access

Network Ad-hoc, piconetsDedicated enteprise, public

hotspot infrastructureCarrier licensed

infrastructure

Data Rate 1Mbps 11Mbps to 54Mbps 40Kbps to 2.4Mbps

Range/Coverage30' - personal proximity

area300' - campus/hotspot

coverageMetro/global coverage with

vehicular support

Subscription No Sometimes Yes

Cost Low Medium High (with access)

Dell Confidential 3 of 23 Client Technologists

Current WLAN Technology Comparisons

802.11b 802.11a 802.11b/g 802.11a/b/g

Maximum Data Rate 11 Mbps 54 Mbps 54 Mbps 54 Mbps

Frequency Band 2.4 GHz 5 GHz 2.4 GHz 5/2.4 GHz

Channels 3 12 3 12/3

Typical Range Up to 300’ Up to 180’ Up to 300’ Up to 180/300’

802.11b Compatible Yes No Yes Yes

• 802.11b – Broadly deployed, lowest cost solution moving to cell phones and handhelds

• 802.11b/g - New mainstream WLAN solution, best for majority of mobile workers

• 802.11a - Provides added capacity in crowded enterprise environments

• 802.11a/b/g – Future-proof for maximum capacity and compatibility

Dell Confidential 4 of 23 Client Technologists

200620062005200520042004PastPast

Security

Security

Radio

Radio

WLAN standards will emphasize throughput, QoS, security & management…

WLAN Technology RoadmapQoS

QoS

Other

Other

Wi-Fi802.11b

Wi-Fi802.11b 802.11g802.11g

802.11a802.11a

802.11n802.11n

WME(eDCF)WME(eDCF) 802.11e802.11e

WEPWEP WPA(TKIP)WPA

(TKIP)802.11i

(AES)802.11i

(AES)

802.1x802.1x

CiscoCCXv1Cisco

CCXv1 CCXv2CCXv2 CCXv3CCXv3

•Migration to dual-band•Faster data rates with .11n•Migration to dual-band•Faster data rates with .11n

•VoIP & streaming support•VoIP & streaming support

•Strong AES encryption•Port-based authentication•Strong AES encryption•Port-based authentication

•Cisco interoperability•Measurements & regulatory•Cisco interoperability•Measurements & regulatory

802.11d802.11d 802.11h802.11h

802.11k802.11k

Dell Confidential 5 of 23 Client Technologists

WLAN Market Overview

• Wireless technologies, characterized according to range and mobility, will evolve to higher data rates

• WLAN market growth will be driven by improved costs, capabilities & usages

• WLAN standards will address throughput, QoS, security and management

• Security remains a key perceived barrier to enterprise WLAN adoption

• WLAN security solutions exist today and will be enhanced in the future

WLAN Market Overview

Dell Confidential 6 of 23 Client Technologists

Wireless technologies, categorized by mobility and range, will continue to evolve to higher data rates...

Wireless Technology RoadmapWLAN

WLAN

Wi-Fi802.11b

Wi-Fi802.11b 802.11g802.11g

802.11a802.11a

802.11n802.11n 11 Mbps

100+ Mbps 54 Mbps

Incr

easi

ng

Ran

ge

and

Mo

bil

ity

WWAN

WWAN GSM

GPRSGSM

GPRS115 kbps

WCDMA(UMTS)

WCDMA(UMTS)

EDGEEDGE HSPDAHSPDA384 kbps 2 Mbps

CDMA2000

1xRTTCDMA2000

1xRTT 1xEV-DV1xEV-DV1xEV-DO1xEV-DO144 kbps 2.4 Mbps 3.1 Mbps

2007+2007+200620062005200520042004PastPast

WPAN

WPAN

Bluetooth1.1

Bluetooth1.1

Bluetooth1.2

Bluetooth1.2

BluetoothEDR

BluetoothEDR

Zigbee802.15.4Zigbee

802.15.4UWB

802.15.3aUWB

802.15.3a

Zigbee802.15.4’Zigbee

802.15.4’

3 Mbps

250 Kbps1 Mbps

100 Mbps+NG UWBNG UWB

480 Mbps

Bluetooth2.x

Bluetooth2.x 1 Mbps

BWA

BWA

WiMAX802.16aWiMAX

802.16a 802.16e802.16e

MobileFi802.20

MobileFi802.20

2-60 Mbps

Dell Confidential 7 of 23 Client Technologists

Wireless Application Landscape

Shor

t R

ange

Lon

g R

ange

Low Data Rate High Data Rate Very high Data Rate

PAN

LAN

WAN

Text, Graphics,Internet, Compressed Audio

Data, Streaming Video,Internet, Hi-Fi Audio

Multi-channel Video & HDTV

Wireless technologies, categorized by mobility and range, will continue to evolve to higher data rates...

UWB

MMDS/LMDS

802.11b/g

802.11g/a

GSM/CDMAGPRS/3G

Bluetooth 1.1

ZigbeeBluetooth 2 (MR)

802.11n

802.16eMAN

802.16a

Dell Confidential 8 of 23 Client Technologists

My_NetworkMy_Data

Wireless will be pervasive, enabling seamless network and device connectivity…

Wireless Everywhere and Anywhere

WPAN

WWAN

BWA

WLAN

GPS

RFID

Airport Customer Office Home

Dell Confidential 9 of 23 Client Technologists

UWB Usage Scenarios Digital Home

Broadband

UWBUWB

UWB

LAN/WLAN Network

UWB

UWB

UWB usage models evolving for Cable replacement in the Digital Home

Dell Confidential 10 of 23 Client Technologists

RADIUS

UWB

802.11a

Acronym Anxiety

WiMAX

Bluetooth

WEP 802.11n

802.11g

802.11i

AES

TKIP

Wi-Fi QoS

Zigbee

CCX

EAP

802.11b

UWB

GPRS

CDMA

802.11e

802.11h

802.16

PEAP

Thank You