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Re: [STDS-802-11-TGBB] Comments on Relayed CCA

Hello all,

I uploaded Doc #342r2 to the server, which provides my feedback on the proposal.  I do believe if it is optional, there will be a significant increase in throughput when it is used (at least 2x and likely more), which may incentivize adoption.  One of the main benefits of providing real-time feedback from the AP is that the mobile STAs get the benefits CSMA/CA, and possibly CSMA/CD if they implement full-duplex.  The latter would address the hidden node problem.

Harry

On Mar 2, 2021, at 7:26 AM, Nikola Serafimovski <nikola.serafimovski@xxxxxxxxxxxx> wrote:

Hi Volker,
Thank you very much for your comments. We’ll certainly look into framing the wording accordingly.
Kind regards,
Nikola
 
From: Jungnickel, Volker <volker.jungnickel@xxxxxxxxxxxxxxxxx> 
Sent: 02 March 2021 09:18
To: Nikola Serafimovski <nikola.serafimovski@xxxxxxxxxxxx>; Chong Han <chong.han@xxxxxxxxxxxx>
Cc: STDS-802-11-TGBB@xxxxxxxxxxxxxxxxx
Subject: Comments on Relayed CCA
 
Dear Nikola, Chong,
 
I have some remarks regarding the relayed CCA scheme proposed in doc. 11-21/0280r1. My two main problems are
  1. it ends in a desaster if it is occassionally also used in non-AP STAs.
  2. it needs full-duplex support at APs which increases complexity
My personal view is it should be optional and if used, in no way activated at non-AP STAs.
 
I hope these comments are helpful for you.
 
Best regards - Volker
 
 
Priv.-Doz. Dr. Volker Jungnickel
Metro-, Access and Inhouse Systems
Fraunhofer Heinrich Hertz Institut
Einsteinufer 37
10587 Berlin
Deutschland
Tel. 0162 255 2756
 

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