2. 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

3. WFA To drive the adoption of a single worldwide-accepted standard for high-speed Wireless Local Area Networking 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. 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.orgwww.wi-fi.org Logo is exclusive property of WFA

4. 802.11 Starts… IEEE 802.11-1997 IEEE 802.11-1997 BPSK/QPSK ModulationBPSK/QPSK Modulation 900 MHz/2.4 GHz, Max Data Rate of 2Mbps900 MHz/2.4 GHz, Max Data Rate of 2Mbps Range of ~150ftRange of ~150ft IEEE 802.11b-1999 Amendment IEEE 802.11b-1999 Amendment CCK ModulationCCK Modulation 2.4 GHz, Max Data Rate of 11Mbps2.4 GHz, Max Data Rate of 11Mbps Range of ~150ftRange of ~150ft

5. 802.11a,g Amendment IEEE 802.11a-1999 Amendment IEEE 802.11a-1999 Amendment OFDM ModulationOFDM Modulation 5GHz, Max Data Rate of 54 Mbps5GHz, Max Data Rate of 54 Mbps Range of ~100ftRange of ~100ft IEEE 802.11g-2003 Amendment IEEE 802.11g-2003 Amendment OFDM ModulationOFDM Modulation 2.4 GHz, Max Data Rate of 54 Mbps2.4 GHz, Max Data Rate of 54 Mbps Range of ~150ftRange of ~150ft

6. 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 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, ….. More…MIMO antenna systems, 40 Mhz channels, RIFS, …..

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

8. 802.11n Momentum Source: Dell’Oro Wireless LAN Report Q3, 07 2,600,000 5,400,000 15000 230,000 4,000,000 12,000,000 Huh? Early adopters (you and me)

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

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

11. 11 11n Adoption 11g remains high volume through 2010 Inflection Point: 11n begins to significantly replace 11a/g in 2008 11n as volume leader in 200911n as volume leader in 2009 Source: In-Stat, 2007 11g 11n 11a/g 11n Adoption

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

13. Carrier Market Source=AT&T, ‘07

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

15. 802.11i Amendment (TGw) 802.11w (we are running out of alphabet) 802.11w (we are running out of alphabet) TG formed in 3/2005 TG formed in 3/2005 Published Spec due in May this year Published Spec due in May this year Protection of Management frames (MAC Layer) Protection of Management frames (MAC Layer) Unicast and Broadcast frames Unicast and Broadcast frames

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