Wireless World

1
Wireless World

• Where the cord is cut, but we are still connected.

2
Wireless World

• Freedom to move
• 3 types of Wireless Technology
• WPAN - Bluetooth
• WLAN - Wireless Ethernet
• WWAN - 3G Technologies

3
Comparison Table
Technology Category Range Bandwidth Applications
Bluetooth WPAN 10cm 10m 57.6 kbps - 723.2 kbps Cellphones, PDAs, Laptops
Wireless Ethernet WLAN 1 ft. 500 ft. 1 Mbps 11 Mbps Laptops, Homes, Offices
3G Cellular WWAN Unlimited gt 2 Mbps Cellphones, PDAs
4
Bluetooth

• Small, portable, uses few resources
• Supports multiple connections
• Standardized

5
Bluetooth

• Bandwidth
• Asynchronous 723.2 kbps in either direction
• Synchronous 433.9 kbps
• Range
• 10 cm 10 m
• Can be extended to 100 m
• Supports voice transmission

6
Bluetooth Companies

• Manufacturers
• Atmel Corp.
• Lucent
• Cambridge Silicon Radio
• Users Bluetooth Special Interest Group
• Ericsson
• Intel
• Toshiba
• Nokia
• IBM

7
Bluetooth Applications

• Telephone (Cordless, Wireless, Other)
• Headsets
• Computers and Laptops
• Computer Peripherals (Keyboard, Mouse, PCMCIA
  cards, USB Dongles, other)
• LAN Peripherals
• PDAs
• Digital Cameras

8
Bluetooth Future Uses

• Wireless Verifications
• Hotel check-ins and door locks
• Airport passage
• E-payments
• Personal Networks
• Connect phone, computer, PDA, and printer
• Other digital devices

9
Wireless Ethernet

• Standardized IEEE 802.11b
• Mimics Regular Network
• Star pattern instead of hub, a WAP
• Direct connection ad hoc mode
• 11 Mbps

10
Wireless Ethernet Cont.

• Mostly indoors
• 100 ft. 500 ft.
• Campus WLANs
• Outdoors
• Wireless LAN-to-LAN Bridges
• 25 miles

11
Wireless Ethernet Security

• Broadcast Radio waves
• Security Concerns
• Squelching Internet Access
• Data Sniffing

12
Wireless Security Solutions

• Wired Equivalent Privacy (WEP) algorithms
• Keys are not transmitted.
• Encrypted Data Packets

13
Wireless Ethernet - Companies

• Lucent
• Cisco
• Microsoft
• Linksys
• Netgear
• Compaq
• D-Link
• Sony
• 3Com

• SMC
• Intel
• Xircom
• Orinoco
• Alvarion
• Proxim
• Apple
• ViewSonic
• Symbol

14
Wireless Ethernet Future

• IEEE 802.11a
• 22 Mbps
• Other uses
• Wireless Tablet Monitors
• Printers

15
3G Technologies

• Universal Mobile Telecommunications System (UMTS)
• GSM (Global System for Mobile Communications)
  Standardized
• Third Generation

16
3G Technologies

• Bandwidth
• 2 Mbps
• Range
• Unlimited through use of satellites
• 4 Frequencies Quad-band
• 900MHz, 1800MHz, 1900MHz, 2200MHz

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3G Technologies

• Multimedia Applications
• Always On
• E-mail, Personal Organizer
• Information
• Web surfing, Corporate Intranet
• Purchasing
• Online shopping and banking

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3G Companies

• Verizon
• CDMA
• Cingular Wireless
• GSM, TDMA, 3G EDGE
• ATT Wireless
• TDMA
• Nextel
• iDEN

• Sprint PCS
• CDMA
• VoiceStream
• GSM, GPRS
• Kyocera Wireless
• Released 2 phones using CDMA2000 1x

19
3G Technologies

• Lucent plans to roll out 3G services by end of
  2002
• Frequency licensing issues to be resolved

20
Conclusion

• 2004 1 billion wireless devices
• Out-of-office productivity
• Mobile office
• Next Defining Technology