Are single user & multi user beamforming mutually exclus

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> General Questions
Author Message
lavus4578
DD-WRT Novice


Joined: 04 Aug 2020
Posts: 7

PostPosted: Sat Aug 15, 2020 0:48    Post subject: Are single user & multi user beamforming mutually exclus Reply with quote
Hello everyone,

Is there any meaning to enable single user beamforming if I enable multi user beamforming?

My router is Quad Stream Wave 2. I could also not find any option to enable MU-MIMO. Is MU-MIMO turned on by default or tweaked according to beamforming setting?

BS Build: R43420.
Netgear R9000.
Only enabled Wireless-AC.


Last edited by lavus4578 on Sat Aug 15, 2020 14:25; edited 1 time in total
Sponsor
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7265
Location: Texas, USA

PostPosted: Sat Aug 15, 2020 3:53    Post subject: Reply with quote
On what router? Have you read the wireless settings wikis?
_________________
Official Forum Rules, Guidelines, and Helpful InformationFirmware FAQInstallation WikiWhere Do I Download Firmware?
DON'T use Chromium-based browsersRTFM/STFW - TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
Please DO NOT PM me with questions; Ask in the forum.

---------------------------------------------------------

Linux User #377467 counter.li.org / linuxcounter.net
lavus4578
DD-WRT Novice


Joined: 04 Aug 2020
Posts: 7

PostPosted: Sat Aug 15, 2020 6:04    Post subject: Reply with quote
kernel-panic69 wrote:
On what router? Have you read the wireless settings wikis?

R9000. I read all wireless setting wikis.

Single User Beamforming:

Quote:
Controls whether 802.11ac beamforming is enabled for single user, aka "regular MIMO" connected devices that support beamforming.

Multi User Beamforming:
Quote:
Controls whether 802.11ac beamforming is enabled for multi user, "MU-MIMO" connected devices that support beamforming. Since MU-MIMO is a 802.11ac wave 2 feature, all wave 2 devices will support beamforming & MU-MIMO.

Totally confusing. My believe was MIMO & beamforming is 2 different things. Is there even something called single user and multi user beamforming? Or is it a merged term that means beamforming with SU-MIMO & MU-MIMO thus eliminating a need for seperate MIMO setting?

This topic appear to reply so https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=313854
Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 5808
Location: Romerike, Norway

PostPosted: Sat Aug 15, 2020 9:09    Post subject: Reply with quote
This is why you should not enable MU-MIMO:

If you have clients with a Broadcom chip that is not MU-MIMO capable, the throughput will actually be drastically lowered.
https://www.smallnetbuilder.com/wireless/wireless-features/33100-why-you-don-t-need-mu-mimo

https://www.howtogeek.com/242793/what-is-mu-mimo-and-do-i-need-it-on-my-router/
lavus4578
DD-WRT Novice


Joined: 04 Aug 2020
Posts: 7

PostPosted: Sat Aug 15, 2020 14:23    Post subject: Reply with quote
Per Yngve Berg wrote:
This is why you should not enable MU-MIMO:

If you have clients with a Broadcom chip that is not MU-MIMO capable, the throughput will actually be drastically lowered.
https://www.smallnetbuilder.com/wireless/wireless-features/33100-why-you-don-t-need-mu-mimo

https://www.howtogeek.com/242793/what-is-mu-mimo-and-do-i-need-it-on-my-router/

That doesn't answer my question Rolling Eyes To clarify, I only enable Wireless-AC and all my devices support beamforming & MU-MIMO. R9000 is called Atheros based.

The question isn't primarily about MU-MIMO as well. I want to know about relation between 2 beamforming and 2 MIMO setting. You'll understand if you read main question again plus my reply to kernel-panic69.
msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1369
Location: Illinois Moderator

PostPosted: Tue Aug 18, 2020 15:06    Post subject: Reply with quote
please read the best qca wifi settings wiki I wrote..that will explain everything...see my signature below for the links...
_________________
FORUM RULES

TIPS/TRICKS: Best QCA Wifi Settings | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]44565 nightly (Main Router)
[EA8500]43192 nightly (2xOffsite)
[R7800]napping
[WDR3600]BS 42567 (Offsite)
[A7v5]BS 43038 (Offsite+spare napping)
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Forum Index -> General Questions All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum