1. Planning for 802.11ac Webinar www.cwnp.comCopyright © 2014 CWNP, LLC All rights reserved.

2. Agenda Understanding the issues 1 2 Planning for coverage 3 4 Planning for capacity Planning for coverage and capacity Client Considerations 5 6 Upgrade Planning

3. Understanding the Issues 802.11ac features: Wider channels (up to 160 MHz) More spatial streams (up to 8) 256-QAM modulation MU-MIMO (Transmit Beamforming)

4. Understanding the Issues Spectrum utilization 2.4 GHz vs. 5 GHz 20 MHz 40 MHz 80 MHz 160 MHz Data rates Increase from 11a/g through 11ac

5. Planning for Coverage No discussion required for 2.4 GHz 5 GHz provides for 25 20 MHz channels 22 are available for use in the US 9 are guaranteed to be available 195 MHz additional space very likely in 2015 Channel reference numbering changed 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 144 149 153 157 161 165 UNII-1 UNII-2 UNII-2-Extended UNII-3 ISM 20 MHz 40 MHz 80 MHz DFS Channels New with 11ac TDWR 5.150-5.250 5.250-5.330 5.490-5.730 5.735-5.815

6. Planning for Capacity Capacity is king – coverage is assumed Stated differently – anyone can do coverage Keith Parsons, “…coverage is easy.” Considerations related to capacity: Applications Users/clients Wireless side Wired side Installing more physical AP devices is not the only solution

7. Planning for Coverage and Capacity Must consider channel planning with capacity requirements in mind Individual throughput Aggregate throughput Factors: Co-channel interference User volume in channel Applications Client types

8. Client Considerations Today Most clients on 802.11n Few clients on 802.11ac Few clients on 802.11bg Fewer clients on 802.11a Tomorrow Most clients on 802.11ac Few clients on 802.11n DFS and Clients Know your clients Make DFS support a primary consideration going forward

9. Upgrading From 802.11n Phase 1 Continue use of 40 MHz channels Phase 2 After client support: implement 80 MHz channels From 802.11a/b/g Little use of 11a, but must be considered When in place: Replace APs with same channel plan If adding more APs, adjust channel plan after additional APs are installed Maintain existing b/g and overlay ac Initially, disable 2.4 GHz on ac APs Enable 2.4 GHz as b/g devices are removed

10. Tools of the Trade Spectrum analyzer No new investment required - technically Protocol analyzer New investment required Site survey software New investment required

11. Agenda Understanding the issues 1 2 Planning for coverage 3 4 Planning for capacity Planning for coverage and capacity Client Considerations 5 6 Upgrade Planning