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OFDMA/MU-MIMO

OFDMA/MU-MIMO
OFDMA/MU-MIMO
2025-07-04 05:14:16 - last edited 2025-07-07 16:38:59

This forum form does not allow me to enter the router I am using: Archer BE9500.

 

I tested then disabled OFDMA/MU-MIMO on this router. I tested the upload and download speeds with and without 

OFDMA/MU-MIMO enabled. The upload speed for the enabled setting was significantly lower than with OFDMA/MU-MIMO disabled. 

 

I know this topic has been discussed thoroughly but here I am inviting further discussion. I have read that OFDMA/MU-MIMO is touted to be the greatest thing since sliced bread but I can't produce any actual data from my personal experience to warrant enabling it. What are the WiFi criteria that warrants enabling the OFDMA/MU-MIMO feature? 

 
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Re:OFDMA/MU-MIMO-Solution
2025-07-04 13:47:53 - last edited 2025-07-07 16:38:59

  @FixMacs 

 

Does the client device have to support OFDMA ?

No, not all clients need to support OFDMA for it to be used. If at least one client and the access point (AP) support OFDMA, it can be utilized for simultaneous bidirectional transmission. However, OFDMA is more effective when multiple clients also support it.

Does the client device have to support MU-MIMO ?

Yes, a client device must support MU-MIMO for it to be utilized in a Wi-Fi network. If a client device does not support MU-MIMO, the router or access point will fall back to Single-User MIMO (SU-MIMO) for communication with that device.

 

In general, it's up to your decision whether to enable MU-MIMO feature or not.

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Re:OFDMA/MU-MIMO-Solution
2025-07-04 13:47:53 - last edited 2025-07-07 16:38:59

  @FixMacs 

 

Does the client device have to support OFDMA ?

No, not all clients need to support OFDMA for it to be used. If at least one client and the access point (AP) support OFDMA, it can be utilized for simultaneous bidirectional transmission. However, OFDMA is more effective when multiple clients also support it.

Does the client device have to support MU-MIMO ?

Yes, a client device must support MU-MIMO for it to be utilized in a Wi-Fi network. If a client device does not support MU-MIMO, the router or access point will fall back to Single-User MIMO (SU-MIMO) for communication with that device.

 

In general, it's up to your decision whether to enable MU-MIMO feature or not.

If this was helpful click on the arrow pointing upward to make it blue. If this solves your issue, click the star to make it blue and mark the post as a "Recommended Solution".
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Re:OFDMA/MU-MIMO
2025-07-07 16:40:06
So, client features are important. Whether or not WiFi clients support these protocols. Got it.
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