From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mail.toke.dk; spf=pass smtp.mailfrom=; dkim=fail; arc=none (Message is not ARC signed); dmarc=fail (Used From Domain Record) header.from=umbernetworks.com policy.dmarc=quarantine Received: from mail.umbernetworks.com (mail.umbernetworks.com [198.74.51.139]) by mail.toke.dk (Postfix) with ESMTPS id CFA261271F4E for ; Fri, 26 Jun 2026 06:30:55 +0200 (CEST) Received: from webmail.umbernetworks.com (files.umbernetwork.com [198.74.51.139]) by mail.umbernetworks.com (Postfix) with ESMTPA id 1462B21A15C; Fri, 26 Jun 2026 04:30:53 +0000 (UTC) MIME-Version: 1.0 Date: Thu, 25 Jun 2026 21:30:53 -0700 From: bob.mcmahon@umbernetworks.com To: Make-Wifi-fast Cc: Jiml , Igor Aleinikov , Martycieslak , "Dave.seddon Ca" , Robin Jarry , Thomas , Morten , Tim Odriscoll , William Fisher , Jim , Hawkinsw , Sebastian Moeller , robmoser@gmail.com, Koen DS , Firas Shaari , Sblanchard , Frantisek Borsik , Jim Stewart Message-ID: X-Sender: bob.mcmahon@umbernetworks.com Message-ID-Hash: NQIIYM2M6JOS7ONYNEJJBYSU53ACR4CV X-Message-ID-Hash: NQIIYM2M6JOS7ONYNEJJBYSU53ACR4CV X-MailFrom: bob.mcmahon@umbernetworks.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed X-Content-Filtered-By: Mailman/MimeDel 3.3.10 X-Mailman-Version: 3.3.10 Precedence: list Subject: [Make-wifi-fast] Review request: Fi-Wi 802.11 development test rig List-Id: Lets make wifi fast again! Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hi All, I'm considering building a new 802.11 development test rig and writing the control and measurement software for it. Much of the software foundation is already in place. The goal is to create a reproducible platform for testing whether centralized MAC scheduling and MCS selection can improve dense in-building Wi-Fi. The analogy I have in mind is the shift from Ethernet hubs to Ethernet switches: moving from distributed contention to a more controlled forwarding architecture. The design and parts document is here: https://www.umbernetworks.com/umber-devel-test-rig.html [1] The rig is intended to support controlled A/B testing between a Fi-Wi RRH and a conventional AP under matched 2x2 MIMO channel conditions and repeatable dense-BSS interference. The first version validates the single-RRH RF/MAC-control boundary using GPS-synchronized one-way delay, throughput, and MAC-layer telemetry. A later multi-cell version would extend this to multiple RRHs, multiple STAs, and inter-RRH coordination. The baseline AP should not be a strawman. It will be configured with the best available distributed Wi-Fi controls, including FQ-CoDel, CAKE, AQL, AC_N15 EDCA parameters, and L4S AQM where supported. The point is to test what remains after modern queue management and airtime queue limiting are applied: EDCA contention, CCA deferral, retries, rate adaptation, TXOP behavior, aggregation, and local AP-only MCS decisions under dense-BSS load. The important point is that the rig is designed to be falsifiable. It should be capable of proving Fi-Wi wrong under controlled conditions. That is what would make positive results credible. Reviews and comments are welcome, especially on the RF path, calibration method, dense-BSS load model, baseline AP configuration, queue/AQM setup, AQL settings, and measurement software. Thanks, Bob Links: ------ [1] https://www.umbernetworks.com/umber-devel-test-rig.html