Next Generation Gigabit WiFi 802.11ac
{ POWERFULL ANSWERS }

Farrukh Wasim, CCIE # 19750, Cisco Wireless LAN Design
Specia...
Please scroll to the final slide so that you can
watch the video of this session.
Thank you!

Confidential and proprietary...
WHY DO WE NEED FASTER WI-FI?
• More devices per user/BYOD.
• Mobility increasing demand more bandwidth and performance thr...
Evolution of 802.11

5
What is 802.11ac

Optimized for high bandwidth applications
Backwards compatible with 802.11n and 802.11
a/b/g

Optimized ...
New features of 802.11ac
• Wider Channels and More Spatial Streams than 802.11n

• Data rates Up to to 1.3 Gbps (Wave 1) &...
Single-User MIMO (802.11n) vs Multi-User MIMO (802.11ac)
• SU-MIMO (802.11n)

One frame for one receiver (Hub like technol...
Beamforming: 802.11ac promises great Wi-Fi
enhancements
• Beamforming is a signal processing technique used to control the...
Comparison of 802.11n and 802.11ac
IEEE
Standard

802.11n

Date

Band

2009

2.4
and
5 GHz

Technology

Mod

OFDM

Up to
6...
Is Your Network Infrastructure Ready for Next-Gen
Wi-Fi Traffic?
• Plan and manage from the start with a flexible technolo...
Verizon Managed Wireless LAN
• Broadcast multiple SSID's/Wireless networks from a single
antenna, allowing you to create m...
Verizon Managed Wireless LAN
Features and Benefits

Central Access Point Enforces consistent security and policies across ...
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Tech Talk Series - Next Generation Gigabit WiFi

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This Tech Talk discusses the evolution of Wi-Fi, introducing the latest technology and business needs. The presenter compares 802.11n to the new next generation gigabit Wi-Fi 802.11ac and explains the next generation traffic expectations.

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Tech Talk Series - Next Generation Gigabit WiFi

  1. 1. Next Generation Gigabit WiFi 802.11ac { POWERFULL ANSWERS } Farrukh Wasim, CCIE # 19750, Cisco Wireless LAN Design Specialist, Aruba-Certified Mobility Professional Network Engineer Email: Farrukh.wasim@verizon.com Office: (714)-390-2785 © 2010 Verizon. All Rights Reserved. PTE11987 05/10
  2. 2. Please scroll to the final slide so that you can watch the video of this session. Thank you! Confidential and proprietary materials for authorized Verizon personnel and outside agencies only. Use, disclosure or distribution of this material is not permitted to any unauthorized persons or third parties except by written agreement. 2
  3. 3. WHY DO WE NEED FASTER WI-FI? • More devices per user/BYOD. • Mobility increasing demand more bandwidth and performance throughout the network. • “Big” apps / Higher Bandwidth Applications: Internet Video Streaming 2.5 to 8 Mbps HDTV 19.4 to 25 Mbps Blu-Ray 40 Mbps Uncompressed “good” Video 8 bit, 1920x1080 796 Mbps Uncompressed “Best” Video 3730 Mbps 10 bit, 1920x1080 4
  4. 4. Evolution of 802.11 5
  5. 5. What is 802.11ac Optimized for high bandwidth applications Backwards compatible with 802.11n and 802.11 a/b/g Optimized for better client battery life Provides better coverage in dense environments 6
  6. 6. New features of 802.11ac • Wider Channels and More Spatial Streams than 802.11n • Data rates Up to to 1.3 Gbps (Wave 1) & 3.6 Gbps (Wave 2) • Operates in 5GHz Band only • Multiple input, multiple output (MIMO) antenna technology to avoid multipath interference problems and improve data throughput • Beamforming, or concentrating signal strength from an antenna toward one or more client devices • Less air time: faster throughput result means packets are taking less air time which also translates to less probability of RF interference • Noticeably faster connectivity enabling an enhanced Quality of Experience for the end user • Wired-like experience at higher speed 7
  7. 7. Single-User MIMO (802.11n) vs Multi-User MIMO (802.11ac) • SU-MIMO (802.11n) One frame for one receiver (Hub like technology) • MU-MIMO (802.11ac) Multiple simultaneously frames to multiple receivers (Switch like technology) 8
  8. 8. Beamforming: 802.11ac promises great Wi-Fi enhancements • Beamforming is a signal processing technique used to control the directionality of the transmission and reception of radio signals • In previous generations, wireless was like a lightbulb, with a hotspot or access point "radiating" wireless indiscriminately in a set area. Beamforming is like a laser or lighthouse -- the AP recognizes the device that needs wireless and focuses the wireless directly where it's needed 9
  9. 9. Comparison of 802.11n and 802.11ac IEEE Standard 802.11n Date Band 2009 2.4 and 5 GHz Technology Mod OFDM Up to 64 QAM OFDM Up to 256 QAM End-2013 (Wave-1) 802.11ac 10 + 2015 (Wave-2) 5 GHz Channel Bandwidth MIMO 20, 40 MHz Up to 4X4 40,80,160 MHz Up to 8X8 Maximum speed 600 Mbits/s 3.6 Gbits/s+
  10. 10. Is Your Network Infrastructure Ready for Next-Gen Wi-Fi Traffic? • Plan and manage from the start with a flexible technology road map • Consider an end-to-end architecture • Scale up bandwidth – Switching has to be Gigabit at the edge – Recommend 10Gbps from the edge to the core – Core switching will need 10 Gbps interfaces • Review cabling Infrastructure – Second-wave 802.11ac APs will require two, not one, Gigabit Ethernet ports, That just doubled your need for switch ports and cable runs • Switching will need to be PoE+ (802.2at) cable – 802.11n access points use up to 15mw of PoE but 802.11ac access will be estimates in the 20-25mw range which 802.3af (regular PoE) will not support. • RF designs have to be done from a 5Ghz perspective – This will mean that your AP density will be higher because the 5Ghz wavelength is shorter and attenuates greater than 2.4Ghz when transmitting through building materials, Knowing that this was coming and that 5Ghz has become the preferred band to use you should plan WLAN RF designs from the 5Ghz perspective. • Work closely with telecommunications service providers 11
  11. 11. Verizon Managed Wireless LAN • Broadcast multiple SSID's/Wireless networks from a single antenna, allowing you to create multiple networks for guest, multiple managed, and/or voice networks. • Dynamically load balance your clients on the network with adaptive Radio Management technology support. So that in the event of an access point going offline, or high load in one area, other nearby points will increase antenna strength to compensate. • Scalability from a few managed APs at a single location to many thousands across the nation • Enforces uniform policy and security from day 1 • Optional Verizon provided wireless-enabled 802.1x compliant RADIUS authentication appliance • Security monitoring including Rogue Access Point detection and customer notification 12 12
  12. 12. Verizon Managed Wireless LAN Features and Benefits Central Access Point Enforces consistent security and policies across your entire wireless network no matter where the AP may be deployed. Management Can help reduce security risks and holes. Air Monitoring Options Security and Encryption 13 Two options depending on an enterprise’s RF security needs, while offering wireless LAN security. Both Simultaneous and Dedicated Air Monitoring help to promote strict wireless security throughout your enterprise’s RF space. Works with all IEEE-approved wireless security standards, including 802.11i and WPA2. Will incorporate newer standards as they are approved.

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