The Increase in the speed of internet connection

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Enablers:

  • Increasing attention of research on the 802.11 standard
  • Increased support by major industry leaders - e.g. Intel, Apple

Inhibitors:

  • Radio-frequency transmission difficulties to consider:
    • Multi-path fading
    • Signal to noise ratios
    • Interference - electromagnetic and physical
    • Usable transmission distance
  • Regulatory limits on radio channels available
  • Regulatory limits on power levels for transmission
  • Error detection and correction mechanisms reduce usable payload size
  • Security fears

Paradigms:

Emerging paradigms associated with the emergence of IEEE 802.11x

  • Wi-Fi is the now standard name assosciated with 802.11x, and official WiFi Certification is now common
  • Hotspots (areas of WiFi coverage) have appeared throughout the world, often as a result of wireless communities
  • Wireless communities usually implement wide-area wireless networks to reduce cost/complexity in the 'last-mile'
  • Wardriving is the activity of searching for Hotspots i.e. travelling and picking up transmissions
  • Elektrosmog is being significantly contributed to by WiFi as it increases in popularity and as new standards employ multiple channels to increase speed

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Timing:

  • Original IEEE 802.11 standard established in 1997 - 1Mbit/s and 2Mbit/s
  • 802.11b amendment in 1999 - 11Mbit/s
  • 802.11a also amended in 1999 but only really available in 2001, after 802.11b - 54Mbit/s at 5GHz
  • 802.11g released in 2003 - 54Mbit/s at 2.4GHz
  • 802.11n expected in March 2009 - will probably deliver 248 Mbit/s
  • 802.11y 2008 54Mbit/s at 3.7Ghz

Web Resources:






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