Title: Randy Kendzior, Dell, Inc.
1Wireless Technology DiscussionMassachusetts
Digital Government Summit
- Randy Kendzior, Dell, Inc.
- September 24, 2004
2Wireless Networks A Simple Overview
WLAN
WPAN
WWAN
Personal space
Home, Campus, Hotspots
Metros, Countries, Global
3Current WLAN Technology Comparisons
- 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
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
4WLAN Technology Roadmap
WLAN standards will emphasize throughput, QoS,
security management
- Migration to dual-band
- Faster data rates with .11n
802.11g
Wi-Fi 802.11b
802.11n
Radio
802.11a
WME (eDCF)
802.11e
QoS
- Strong AES encryption
- Port-based authentication
WEP
WPA (TKIP)
802.11i (AES)
Security
802.1x
- Cisco interoperability
- Measurements regulatory
802.11k
Other
802.11d
802.11h
2006
2005
2004
Past
5WLAN Market Overview
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
6Wireless Technology Roadmap
Wireless technologies, categorized by mobility
and range, will continue to evolve to higher data
rates...
Increasing Range and Mobility ?
7Wireless Application Landscape
Wireless technologies, categorized by mobility
and range, will continue to evolve to higher data
rates...
Text, Graphics, Internet, Compressed Audio
Multi-channel Video HDTV
Data, Streaming Video, Internet, Hi-Fi Audio
MAN
802.16e
802.16a
Long Range
WAN
GSM/CDMA
MMDS/LMDS
GPRS/3G
802.11b/g
LAN
802.11n
802.11g/a
Short Range
Bluetooth 2 (MR)
UWB
Zigbee
PAN
Bluetooth 1.1
Low Data Rate
High Data Rate
Very high Data Rate
8Wireless Everywhere and Anywhere
Wireless will be pervasive, enabling seamless
network and device connectivity
My_Network My_Data
GPS
WWAN
WLAN
BWA
RFID
WPAN
- ?Airport
- Customer
- Office
- Home
9UWB Usage Scenarios Digital Home
UWB usage models evolving for Cable replacement
in the Digital Home
UWB
UWB
UWB
LAN/WLAN Network
UWB
UWB
Broadband
10Acronym Anxiety
802.11a
802.11n
WEP
TKIP
WiMAX
Zigbee
Bluetooth
EAP
RADIUS
CCX
802.11g
802.11b
802.11h
802.11i
UWB
AES
CDMA
PEAP
QoS
Wi-Fi
802.11e
802.16
GPRS
UWB
11Thank You