WANS and 3G

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WANS and 3G
Kelvin Hilton K319 k.c.hilton_at_staffs.ac.uk www.soc
.staffs.ac.uk/kch1
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Objectives

• Which wirefree technology is best?
• Mobile Broadband
• Mobile vs Wireless

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Where to start?

• If you had to advise a company on which
  mobile/wireless technology to adopt what would
  you recommend?
• Wireless
• 802
• Bluetooth
• Mobile
• Operator?
• 2.5/3G

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Mobile Broadband

• Operators are already looking at 200kbps
• 1Mbps is the goal
• How much bandwidth do normal enterprise
  applications require?
• Email
• Documents
• Spreadsheets
• Data queries
• Video conferencing?
• Presentations

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Mobile Broadband

• Devices are already supporting multiple
  connectivity
• 900/1800/1900 GSM for voice
• But what about data?
• Enhanced 2G and 3G are datacentric offering no
  improvement to voice
• However, Orthogonal Frequency Division
  Multiplexing (OFDM) data technologies such as
  802.11 are capable of handling voice

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The Killer Application

• Mobile operators have spent vast sums on trying
  to identify and develop the killer app
• Email
• Micro-Browsing
• Is there such a thing?
• What was the Internets killer application?
• Do we all use the internet for the same reasons?

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Connectivty

• Growing number of experts identify bandwidth as
  the killer app
• In other words the ability to do what you want
• What other issues could impact on adoption?

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CDMA2000 1xEV-DO

• Data only channel
• Offers 1.25MHz radio channel
• 300kbps 500kbps norm
• 2.4Mbps peak

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High Speed Downlink Packet Access (HSDPA)

• Enhances UMTS data rates up to 14Mbps
• 2005-6 will see Japan/US migrating to this 3.5G
  technology
• Better modulation
• Dynamic coding

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Mobile vs Wireless

• Operators are watching the WLAN developments
• Talk of sharing mobile bandwidth to enhance data
  throughput
• Multiplatform devices
• VoIP
• Wireless instant messaging
• Laptop connectivity vs PDA/Smartphone

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Questions?