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Transcript

  • 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 Cellphones, PDAs > 2 Mbps Unlimited WWAN 3G Cellular Laptops, Homes, Offices 1 Mbps – 11 Mbps 1 ft. – 500 ft. WLAN Wireless Ethernet Cellphones, PDAs, Laptops 57.6 kbps - 723.2 kbps 10cm – 10m WPAN Bluetooth Applications Bandwidth Range Category Technology
  • 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 ( G lobal S ystem for M obile Communications) Standardized
    • Third Generation
  • 16. 3G Technologies
    • Bandwidth
      • 2 Mbps
    • Range
      • Unlimited through use of satellites
    • 4 Frequencies – Quad-band
      • 900MHz, 1800MHz, 1900MHz, 2200MHz
  • 17. 3G Technologies
    • Multimedia Applications
    • Always On
      • E-mail, Personal Organizer
    • Information
      • Web surfing, Corporate Intranet
    • Purchasing
      • Online shopping and banking
  • 18. 3G Companies
    • Verizon
      • CDMA
    • Cingular Wireless
      • GSM, TDMA, 3G EDGE
    • AT&T 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