1. Noisy Times in Wireless Welcome to Our World

2. WiMAX Those who cannot remember the past are condemned to repeat it. - George Santayana June 3 rd 2008 Wi-Fi: A Near-Death Experience? RUCKUS ITR PRESENTATION / CHICAGO 2 ” ” WiMAX to Replace Wi-Fi Within Five Years

3. 20102016 694M 2.8B 874M 1.1B Ethernet devices Wi-Fi devices Source: iSuppli 2012 A WORLD GOING WI-FI Annual Unit Shipments Wi-Fi Powers the Post-PC Era Tablets Ultrabooks Lighting Environmental Systems o Mobile data plans drive user demand for Wi-Fi o No spectrum fees for Wi-Fi service providers o Low cost/bit in wireless data capacity WHY WI-FI? Projectors RUCKUS ITR PRESENTATION / CHICAGO 3

4. Wi-Fi is the New Ethernet Opens Up Massive New Market Opportunity Source: DellOro Group 95 Today $25B $1B Ethernet Switch Port Market ($ in billions) YESTERDAY TODAY 4 RUCKUS ITR PRESENTATION / CHICAGO

5. Lots of Choices: Everyone has a Thing Big and CloudyRoaming for Voice Access / Security ?Cisco Look-a-Like “Controller-Less” High Density 5 RUCKUS ITR PRESENTATION / CHICAGO Reliability Super Low Cost

6. The Only Thing that Really Matters The signal, the PHY, the air. It’s the foundation and the only place where speed and capacity can be improved. 6 RUCKUS ITR PRESENTATION / CHICAGO

7. But Wi-Fi Has Personal Issues o Coverage: 1997 – present o Security: 1997 – 2004 o Roaming: 1997 – 2009 o Speed: 2003 – present o Capacity: June 29 th 2007 - present 7 RUCKUS ITR PRESENTATION / CHICAGO

8. It’s Inconsistent vs 8 RUCKUS ITR PRESENTATION / CHICAGO

9. It’s Unruly 9 RUCKUS ITR PRESENTATION / CHICAGO

10. It’s Unclear Dropped connections have a huge and negative impact on business operations Interference is a Killer! 10 RUCKUS ITR PRESENTATION / CHICAGO

11. 40MHz Doesn’t 5GHz Solve Everything? 5.25 GHz 5.35 GHz 5.470 GHz 5.725 GHz 5.825 GHz 5.15 GHz UNII-1UNII-2 DFS UNII-3 UNII-2e DFS ▪24 non-overlapping 20 MHz channels ▪11 non-overlapping 40 MHz channels ▪Only 4 non-DFS channels for bonding ▪Creates channel planning problems similar to 2.4 GHz ▪5 GHz isn’t a panacea, RF management is still king 149 153 157 161 36 40 44 48 NON-DFS CHANNELS 11 RUCKUS ITR PRESENTATION / CHICAGO

12. And New Standards Won’t Save You o 802.11ac - Next generation Wi-Fi o Better, bigger, faster……..? o Limited improvement for enterprise customers 12 RUCKUS ITR PRESENTATION / CHICAGO

13. The Key to Better Wi-Fi: SINR o When faced with interference, it’s SINR that matters o Higher SINR = Higher data rates and capacity o So how do you get a high SINR? o You can either increase signal or decrease interference o Adaptive (smart) antenna systems do both! SNR SINR Receive Signal Level Noise Floor T I M E 13 RUCKUS ITR PRESENTATION / CHICAGO

14. THEMUS Fixed 1:1 relationship between Wi-Fi radios and antennas Dynamic 1:many relationship between Wi-Fi radios and antennas Unique, Patented Technology 14 RUCKUS ITR PRESENTATION / CHICAGO

15. Interference o Patented technology that combines: o Smart antenna arrays o Best path selection algorithms o Advanced quality of service engine o Smart mesh RF routing o Centralized Wi-Fi management o Adapts to real-time changes in environmental conditions o Extends signal range (Wi-Fi coverage) 2 to 4 times with fewer APs o Radically simplifies deployment and administration How Smart Wi-Fi Works 15 RUCKUS ITR PRESENTATION / CHICAGO

16. Old School Thinking Traditional Approaches to Dealing with RF Interference Reduces coverage, add more APs Creates chaos Reduces performance, channel capacity 16 RUCKUS ITR PRESENTATION / CHICAGO

17. Reducing Co-Channel Interference Ch 1 Ch 6 Ch 11 17 RUCKUS ITR PRESENTATION / CHICAGO

18. Automatic Interference Mitigation Minimizes Packet Loss and Re-Transmissions, Increases Reliability o Interference mitigated by positioning antenna nulls in specific directions o Avoiding interference delivers more benefits than a stronger signal o Better throughput o More predictable connectivity AP 18 RUCKUS ITR PRESENTATION / CHICAGO

19. Adaptive Polarization Diversity o Better reception (PD-MRC) for weak and hard to “hear” devices o Better transmission to devices constantly changing their orientation Device orientation accounts for up to 5x performance differential among products VERTICAL POLARIZATION HORIZONTAL POLARIZATION 19 RUCKUS ITR PRESENTATION / CHICAGO

20. Please Don’t Believe Us 20 What’s the breaking point for an enterprise AP? How do new 3-stream 802.11n APs performance in a real world environment? RUCKUS ITR PRESENTATION / CHICAGO