DOCSIS 3.1 and WiFi 6 – How fast can you go?

Podcast: Play in new window | Download | Embed

Subscribe: Spotify | Email | RSS | More

This is episode 61 of Get Your Tech On, our show on All Things DOCSIS.  I’m Brady Volpe, Founder of The Volpe Firm and Nimble This. We have two guests with us today, John Downey, CMTS Technical Leader at Cisco Systems, welcome John. 

If you like what you are watching please do hit the subscribe button and if you want to be notified of future events just click on the bell so you receive email notifications each time we go live or upload videos.

• DOCSIS Speeds
  
  

  Source Unknown

   

• Sticking with 1.5 Gbps total downstream capacity in a node with 100 subscribers at 1024-QAM OFDM – let’s do the math:
  • 1 Gbps downstream per sub
  • 25x oversubscription
  • 25 x 1.5 Gbps = 37.5 Gbps capacity
  • 37.5 / 100 = 375 Mbps dedicated downstream
• Typical Netflix Stream: 3 GB/hour for HD or 50 Mb/min or ~8 Mbps
  • Average of 2 streams per home = 16 Mbps
  • 250 homes / node = 4 Gbps
• thoughts on how many DOCSIS 3.1 CPE justify trading DOCSIS 3.0 spectrum for DOCSIS 3.1 spectrum 
• should you upgrade all of your modems to DOCSIS 3.1?
• What is WiFi 6 802.11ax
• https://www.tp-link.com/us/wifi6/#:~:text=What%20is%20Wi%2DFi%206,of%20devices%20in%20the%20world.

Source unknown

Source PC

• • 3 Gbps vs 1.3 Gbps
  • Sixth generation Wifi specification
  • Provides better user experience
  • Better coverage in the home
  • Better efficiency
  • Faster speed and larger coverage
  • Uses OFDM at up to 1024-QAM (previous was 256-QAM) – 25% faster
  • Can send and receive data at the same time
  • Supports more devices on the network at the same time
  • 4x longer symbols and 160 MHz (previously 80 MHz) channel bandwidth
  • But! – your computers and phones also need to support Wifi 6

Wi-Fi 6 is the next generation standard in WiFi technology. Wi-Fi 6 also known as “AX WiFi” or “802.11ax WiFi” builds and improves on the current 802.11ac WiFi standard. WiFi 6 was originally built in response to the growing number of devices in the world. If you own a VR device, multiple smart home devices, or simply have a large number of devices in your household, then a WiFi 6 router might just be the best WiFi router for you. In this guide, we’ll go over WiFi 6 routers and break down how they’re faster, increase efficiency, and are better at transferring data than previous generations.

Cable modems with Wifi 6:

• Netgear Nighthawk CAX80 DOCSIS 3.1 WiFi 6
• Arris Surfboard AC2350
• Inflection point where you optimize DOCSIS 3.1 spectrum and customer experience

John’s session at Cisco Live:  https://www.ciscolive.com/global/on-demand-library.html?#/session/1572903547065001S2g2

End Podcast

John thank you for your time today. This was a great episode.  Our next Episode 62 in July with Technetix CTO.   

You can watch us live or recorded on Youtube or listen to us on your favorite podcaster. Links to everything is on the volpefirm.com webpage. 

If you have enjoyed this webcast, please do hit the subscribe button so that you never miss an episode.

Thank you so much for being here and we will see you next month. 

Thank you so much for being here and we will see you next month.

Upcoming events can be seen under Broadband Events. Previous events can be seen under the blog.

• If you are watching this on youtube please hit the subscribe button!
• Let us know what you think and remember to share!  
• You can find slides at the bottom of the page and some on slideshare.  
• Find out about events or articles by following us on Twitter, LinkedIn or Facebook too.

Also available on iTunes, Google Podcasts, Spotify, vurbl see podcasts “get your tech on”.