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IEEE

IEEE. IEEE Charter “IEEE’s core purpose is to foster technological innovation and excellence for the benefit of humanity” “Standard” something established by authority, custom, or general consent as a model Merriam-webster dictionary. IEEE Logo is exclusive property of IEEE. WFA.

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IEEE

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  1. IEEE IEEE Charter “IEEE’s core purpose is to foster technological innovation and excellence for the benefit of humanity” “Standard” something established by authority, custom, or general consent as a model Merriam-webster dictionary IEEE Logo is exclusive property of IEEE

  2. WFA • To drive the adoption of a single worldwide-accepted standard for high-speed Wireless Local Area Networking • Wireless technology brand which promotes with the aim of improving interoperability of WLAN products based on the IEEE 802.11 standards. Source: www.wi-fi.org Logo is exclusive property of WFA

  3. 802.11 Starts… • IEEE 802.11-1997 • BPSK/QPSK Modulation • 900 MHz/2.4 GHz, Max Data Rate of 2Mbps • Range of ~150ft • IEEE 802.11b-1999 Amendment • CCK Modulation • 2.4 GHz, Max Data Rate of 11Mbps • Range of ~150ft

  4. 802.11a,g Amendment • IEEE 802.11a-1999 Amendment • OFDM Modulation • 5GHz, Max Data Rate of 54 Mbps • Range of ~100ft • IEEE 802.11g-2003 Amendment • OFDM Modulation • 2.4 GHz, Max Data Rate of 54 Mbps • Range of ~150ft

  5. What’s the big deal w/802.11n • OFDM - Yes, already used in .11a/g to achieve 54Mbps but .11n OFDM builds on .11a/g thru the use of MIMO and PHY coding techniques allowing more bandwidth per channel and higher code rates • More…MIMO antenna systems, 40 Mhz channels, RIFS, …..

  6. Latest! 802.11n Amendment • TGn Draft 2.0 approved, Sept ‘07 • TGn Draft 3.0 approved, Nov ’07 • Ratification expected June ‘09 • 2.4GHz / 5GHz, Max Data Rate of 600Mbps • Up to 4 Spatial Streams • Range of ~300ft • Draft Products Shipping Today

  7. 802.11n Momentum Source: Dell’Oro Wireless LAN Report Q3, 07 12,000,000 Early adopters (you and me) 5,400,000 4,000,000 Huh? 2,600,000 230,000 15000

  8. Enterprise Hesitation? • Larger Investment $$$$$$ • Will Draft 2.0 products be compatible with final ratified standard? • No ratified standard means no guarantee!! • Uhh, I think we’ll wait….

  9. But Wait….. • Stability since early 2007 (even with multiple rounds of balloting in .11 wg) • Hardware will change only if absolutely required • Core feature level should be software (Low Impact) • Market success of Draft 2.0 • More benefits than risks

  10. 11n Adoption 11g remains high volume through 2010 Inflection Point: 11n begins to significantly replace 11a/g in 2008 11n as volume leader in 2009 11n Adoption 11n 11a/g 11g Source: In-Stat, 2007 11

  11. Why WLAN needs 802.3z • Throughput,Throughput,Throughput.. • Without GigE, WLAN products will be artificially constrained • 802.3u will be Bottleneck • 802.3ab?......huh…fiber…what?

  12. Carrier Market Source=AT&T, ‘07

  13. WLAN Gateway and IPTV Growth Market Dell’Oro 2007

  14. 802.11i Amendment (TGw) • 802.11w (we are running out of alphabet) • TG formed in 3/2005 • Published Spec due in May this year • Protection of Management frames (MAC Layer) • Unicast and Broadcast frames

  15. Where is it all going? • Wireless Convergence (BT, GPS, WLAN, Cellular) • Consolidation of radio technologies in a single package • Only time will tell

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