Millemeter-Wave Fixed Wireless Access Using IEEE 802.11ay

Carlos Cordeiro; Cheng Chen; Claudio R. C. M. da Silva; Oren Kedem

arxiv: 1907.00082 · v1 · pith:5XHXZIQTnew · submitted 2019-06-28 · 💻 cs.NI

Millemeter-Wave Fixed Wireless Access Using IEEE 802.11ay

Cheng Chen , Oren Kedem , Claudio R. C. M. da Silva , Carlos Cordeiro This is my paper

Pith reviewed 2026-05-25 12:54 UTC · model grok-4.3

classification 💻 cs.NI

keywords IEEE 802.11aymillimeter-wavefixed wireless accessbeamformingschedulinglink maintenance60 GHz

0 comments

The pith

IEEE 802.11ay incorporates scheduling, beamforming, and link maintenance to support millimeter-wave fixed wireless access.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper describes how IEEE 802.11ay's PHY and MAC specifications enable 100 Gbps operation at 60 GHz while addressing the specific demands of fixed wireless access. It focuses on three elements—scheduling, beamforming, and link maintenance—that match FWA's requirements for stable, high-capacity links. A reader would care because the standard offers a non-proprietary path to cost-efficient millimeter-wave networks that can complement or replace conventional wired access. The authors conclude that these built-in capabilities position 802.11ay as a viable foundation for future FWA deployments.

Core claim

IEEE 802.11ay defines new PHY and MAC specifications that enable 100 Gbps communications in the 60 GHz millimeter-wave band. Among the various use cases supported by IEEE 802.11ay, fixed wireless access differentiates itself due to its unique requirements and characteristics. Key elements incorporated into IEEE 802.11ay, including scheduling, beamforming, and link maintenance, efficiently support fixed wireless access. IEEE 802.11ay is thus a viable and strong candidate to form the basis of future generations of standards-compliant mmWave fixed wireless access networks.

What carries the argument

Scheduling, beamforming, and link maintenance mechanisms defined in the IEEE 802.11ay PHY and MAC layers.

If this is right

Future mmWave fixed wireless networks can adopt IEEE 802.11ay without needing proprietary extensions.
The standard supplies built-in tools for maintaining high-capacity links under fixed conditions.
Cost-efficient 100 Gbps service becomes feasible as an alternative or complement to wired access.
Standards bodies can reference IEEE 802.11ay directly when specifying next-generation FWA equipment.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

Operators could integrate 802.11ay FWA with existing Wi-Fi infrastructure more readily than with fully custom mmWave systems.
The emphasis on beamforming suggests easier adaptation to dense urban deployments where line-of-sight paths vary.
Link maintenance procedures may reduce the frequency of manual site visits compared with earlier mmWave approaches.

Load-bearing premise

Fixed wireless access has unique requirements and characteristics that the scheduling, beamforming, and link maintenance elements in IEEE 802.11ay support efficiently.

What would settle it

A deployment measurement or simulation demonstrating that IEEE 802.11ay cannot sustain the required link stability or capacity for typical fixed wireless access scenarios at 60 GHz.

Figures

Figures reproduced from arXiv: 1907.00082 by Carlos Cordeiro, Cheng Chen, Claudio R. C. M. da Silva, Oren Kedem.

**Figure 2.** Figure 2: The scheduling structure of a TDD SP. the transmitter immediately after a successful transmission. In order to resolve this issue, when operating in a TDD SP, a STA does not acknowledge the reception immediately in the same TDD slot. Instead, it transmits the Ack or BlockAck frame at the start of the earliest Basic TDD slot in which the STA is assigned to transmit. Since control frames are given priority i… view at source ↗

**Figure 3.** Figure 3: Examples of TDD beamforming: (a) TDD individual beamforming, (a) + (b) TDD group beamforming. [PITH_FULL_IMAGE:figures/full_fig_p005_3.png] view at source ↗

**Figure 4.** Figure 4: An example of periodic link measurement report. [PITH_FULL_IMAGE:figures/full_fig_p006_4.png] view at source ↗

read the original abstract

IEEE 802.11ay defines new PHY and MAC specifications that enable 100 Gbps communications in the 60 GHz millimeter-wave (mmWave) band. Among the various use cases supported by IEEE 802.11ay, fixed wireless access, a cost-efficient high-performance alternative and/or complement to conventional fixed access, differentiates itself due to its unique requirements and characteristics. In this article, our goal is to identify and describe key elements incorporated into IEEE 802.11ay, including scheduling, beamforming, and link maintenance, that efficiently support fixed wireless access. IEEE 802.11ay is thus a viable and strong candidate to form the basis of future generations of standards-compliant (i.e., non-proprietary) mmWave fixed wireless access networks.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

This is a descriptive overview mapping 802.11ay features to FWA with no new analysis, data, or tests.

read the letter

The main thing to know is that this paper is an overview identifying scheduling, beamforming, and link maintenance elements from the existing IEEE 802.11ay standard and describing how they could fit fixed wireless access needs. It produces no new results, simulations, or measurements. It does a clear job laying out those standard features and their potential alignment with FWA's requirements for high performance and cost efficiency, which could save a reader time when connecting the dots between the spec and this use case. The soft spot is exactly what the stress-test note flags: the paper asserts that these elements efficiently support FWA's unique characteristics and that the standard is therefore a viable and strong candidate for future networks, but it offers no quantitative backing, comparisons to proprietary solutions, range or reliability estimates, or performance data to support the efficiency or viability claims. The argument stays at the level of description. There are no internal contradictions or circular derivations, and the paper sticks to the external standard without inventing entities. This kind of piece is useful for engineers or standards-focused readers who want a targeted summary of one application area. A researcher seeking novel techniques or validated performance would not get much from it. It shows straightforward engagement with the standard but lacks the evidential weight for original research. I would not bring it to a reading group focused on new work. I would not cite it for any technical claim. It does not deserve peer review in a research journal; it reads like a standards tutorial or magazine article instead.

Referee Report

1 major / 0 minor

Summary. The manuscript identifies and describes key elements of the IEEE 802.11ay standard (scheduling, beamforming, and link maintenance) and argues that these features efficiently support the unique requirements of millimeter-wave fixed wireless access (FWA), positioning 802.11ay as a viable and strong candidate for standards-compliant mmWave FWA networks.

Significance. A clear mapping of 802.11ay capabilities to FWA use cases could help practitioners evaluate the standard as a non-proprietary option. The manuscript's descriptive approach provides an accessible overview of relevant standard features, but the absence of any performance data, simulations, or comparisons means the efficiency and viability claims remain untested.

major comments (1)

[Abstract] Abstract: the central claim that the identified elements 'efficiently support' FWA's unique requirements and make 802.11ay a 'viable and strong candidate' rests solely on identification and description; no simulations, measurements, link-budget calculations, reliability analysis, or comparisons to proprietary mmWave FWA solutions are provided anywhere in the manuscript to substantiate efficiency or viability.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the constructive feedback on our manuscript. The paper is intended as a descriptive overview mapping IEEE 802.11ay features to FWA requirements rather than an empirical performance study.

read point-by-point responses

Referee: [Abstract] Abstract: the central claim that the identified elements 'efficiently support' FWA's unique requirements and make 802.11ay a 'viable and strong candidate' rests solely on identification and description; no simulations, measurements, link-budget calculations, reliability analysis, or comparisons to proprietary mmWave FWA solutions are provided anywhere in the manuscript to substantiate efficiency or viability.

Authors: We acknowledge that the manuscript contains no simulations, measurements, or quantitative comparisons. The central claims are qualitative and rest on the analysis of how the standard's specified mechanisms (e.g., scheduled access, beamforming training, and link maintenance procedures) are designed to address FWA-specific challenges such as directional links, blockage, and the need for high reliability in fixed deployments. The contribution is the identification and explanation of these mappings, not empirical validation of performance. We will revise the abstract and introduction to replace 'efficiently support' with 'are designed to support' and 'viable and strong candidate' with 'a standards-compliant candidate', and add a short limitations paragraph noting the absence of performance evaluation. revision: partial

Circularity Check

0 steps flagged

No circularity; descriptive mapping to external standard

full rationale

The paper contains no equations, derivations, fitted parameters, or predictions. It identifies scheduling, beamforming, and link maintenance features from the independently defined IEEE 802.11ay standard and asserts they support FWA requirements, but performs no reduction of any claim to its own inputs or self-citations. The central viability statement is an interpretive conclusion, not a constructed result. This matches the default expectation of no significant circularity.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

No free parameters, axioms, or invented entities are present as the paper is a descriptive overview of a communications standard.

pith-pipeline@v0.9.0 · 5667 in / 993 out tokens · 55894 ms · 2026-05-25T12:54:28.044375+00:00 · methodology

discussion (0)

Reference graph

Works this paper leans on

14 extracted references · 14 canonical work pages

[1]

IEEE 802.11 Working Group, ”Enhancements for Very High Through- put for Operation in License-exempt Bands Above 45 GHz,” IEEE P802.11ay/D3.0, Feb. 2019

work page 2019
[2]

Ghasempour, C

Y . Ghasempour, C. R. C. M. da Silva, C. Cordeiro, and E. W. Knightly, ”IEEE 802.11ay: Next-generation 60 GHz communication for 100 Gb/s Wi-Fi,” IEEE Communications Magazine , vol. 55, no. 12, pp. 186-192, Dec. 2017

work page 2017
[3]

Zhou et al

P. Zhou et al. ”IEEE 802.11ay based mmWave WLANs: Design Chal- lenges and Solutions,” IEEE Communications Surveys and Tutorials , 2018

work page 2018
[4]

Maltsev, A

A. Maltsev, A. Pudeyev, A. Lomayev, and I. Bolotin, ”Channel modeling in the next generation mmWave Wi-Fi: IEEE 802.11 ay standard.” 22th European Wireless Conference , pp. 1-8. VDE, 2016

work page 2016
[5]

da Silva, J

C.R.C.M. da Silva, J. Kosloff, C. Chen, A. Lomayev, and C. Cordeiro, ”Analysis and Simulation of the IEEE 802.11 ay Single-Carrier PHY ,” 2018 IEEE International Conference on Communications , pp. 1-6, 2018

work page 2018
[6]

da Silva, A

C.R.C.M. da Silva, A. Lomayev, C. Chen, and C. Cordeiro, ”Beam- forming Training for IEEE 802.11 ay Millimeter Wave Systems,” 2018 Information Theory and Applications Workshop (ITA) , pp. 1-9, 2018

work page 2018
[7]

M. Kim, T. Ropitault, S. Lee, and N. Golmie, ”Efﬁcient MU-MIMO Beamforming Protocol for IEEE 802.11ay WLANs,” IEEE Communica- tions Letters , 2018

work page 2018
[8]

Grigat, S

M. Grigat, S. Sawhney, D. Tujkovic, S. Krauss, C. Lange, and O. Bonnes, ”mmWave Distribution Network Usage Model,” doc. IEEE 802.11-17/1019r2 (Accessed on Jun. 20, 2019), Jul. 2017. 7

work page 2019
[9]

Dehos, et al

C. Dehos, et al. ”Millimeter-wave access and backhauling: the solution to the exponential data trafﬁc increase in 5G mobile communication systems?” IEEE Communications Magazine no. 9, pp 88-95, 2014

work page 2014
[10]

Z. Pi, J. Choi, and R. Heath, ”Millimeter-wave gigabit broadband evolution toward 5G: Fixed access and backhaul.” IEEE Communications Magazine vol. 54, no. 4, pp. 138-144, 2016

work page 2016
[11]

Enjamio, E

C. Enjamio, E. Vilar, and F. Perez-Fontan, ”Rain scatter interference in mm-wave broadband ﬁxed wireless access networks caused by a 2-D dynamic rain environment.” IEEE Transactions on Wireless Communica- tions vol. 6, no. 7, pp. 2497-2507, 2007

work page 2007
[12]

C. U. Bas et al. ”Outdoor to indoor penetration loss at 28 GHz for ﬁxed wireless access.” 2018 IEEE International Conference on Communica- tions, pp. 1-6, 2018

work page 2018
[13]

C. Saha, M. Afshang, and H. S. Dhillon. ”Integrated mmwave access and backhaul in 5G: Bandwidth partitioning and downlink analysis.” 2018 IEEE International Conference on Communications , pp. 1-6, 2018

work page 2018
[14]

20, 2019)

Facebook, ”Terragraph: Solving the Urban Bandwidth Challenge,” avail- able at https://terragraph.com (Accessed on Jun. 20, 2019). BIOGRAPHIES Cheng Chen is a Wireless Standards Research Engineer with the Next Generation and Standards Group at Intel Corporation. He has been an active contributor to IEEE 802.11ay, and was heavily involved in the deﬁnition o...

work page 2019

[1] [1]

IEEE 802.11 Working Group, ”Enhancements for Very High Through- put for Operation in License-exempt Bands Above 45 GHz,” IEEE P802.11ay/D3.0, Feb. 2019

work page 2019

[2] [2]

Ghasempour, C

Y . Ghasempour, C. R. C. M. da Silva, C. Cordeiro, and E. W. Knightly, ”IEEE 802.11ay: Next-generation 60 GHz communication for 100 Gb/s Wi-Fi,” IEEE Communications Magazine , vol. 55, no. 12, pp. 186-192, Dec. 2017

work page 2017

[3] [3]

Zhou et al

P. Zhou et al. ”IEEE 802.11ay based mmWave WLANs: Design Chal- lenges and Solutions,” IEEE Communications Surveys and Tutorials , 2018

work page 2018

[4] [4]

Maltsev, A

A. Maltsev, A. Pudeyev, A. Lomayev, and I. Bolotin, ”Channel modeling in the next generation mmWave Wi-Fi: IEEE 802.11 ay standard.” 22th European Wireless Conference , pp. 1-8. VDE, 2016

work page 2016

[5] [5]

da Silva, J

C.R.C.M. da Silva, J. Kosloff, C. Chen, A. Lomayev, and C. Cordeiro, ”Analysis and Simulation of the IEEE 802.11 ay Single-Carrier PHY ,” 2018 IEEE International Conference on Communications , pp. 1-6, 2018

work page 2018

[6] [6]

da Silva, A

C.R.C.M. da Silva, A. Lomayev, C. Chen, and C. Cordeiro, ”Beam- forming Training for IEEE 802.11 ay Millimeter Wave Systems,” 2018 Information Theory and Applications Workshop (ITA) , pp. 1-9, 2018

work page 2018

[7] [7]

M. Kim, T. Ropitault, S. Lee, and N. Golmie, ”Efﬁcient MU-MIMO Beamforming Protocol for IEEE 802.11ay WLANs,” IEEE Communica- tions Letters , 2018

work page 2018

[8] [8]

Grigat, S

M. Grigat, S. Sawhney, D. Tujkovic, S. Krauss, C. Lange, and O. Bonnes, ”mmWave Distribution Network Usage Model,” doc. IEEE 802.11-17/1019r2 (Accessed on Jun. 20, 2019), Jul. 2017. 7

work page 2019

[9] [9]

Dehos, et al

C. Dehos, et al. ”Millimeter-wave access and backhauling: the solution to the exponential data trafﬁc increase in 5G mobile communication systems?” IEEE Communications Magazine no. 9, pp 88-95, 2014

work page 2014

[10] [10]

Z. Pi, J. Choi, and R. Heath, ”Millimeter-wave gigabit broadband evolution toward 5G: Fixed access and backhaul.” IEEE Communications Magazine vol. 54, no. 4, pp. 138-144, 2016

work page 2016

[11] [11]

Enjamio, E

C. Enjamio, E. Vilar, and F. Perez-Fontan, ”Rain scatter interference in mm-wave broadband ﬁxed wireless access networks caused by a 2-D dynamic rain environment.” IEEE Transactions on Wireless Communica- tions vol. 6, no. 7, pp. 2497-2507, 2007

work page 2007

[12] [12]

C. U. Bas et al. ”Outdoor to indoor penetration loss at 28 GHz for ﬁxed wireless access.” 2018 IEEE International Conference on Communica- tions, pp. 1-6, 2018

work page 2018

[13] [13]

C. Saha, M. Afshang, and H. S. Dhillon. ”Integrated mmwave access and backhaul in 5G: Bandwidth partitioning and downlink analysis.” 2018 IEEE International Conference on Communications , pp. 1-6, 2018

work page 2018

[14] [14]

20, 2019)

Facebook, ”Terragraph: Solving the Urban Bandwidth Challenge,” avail- able at https://terragraph.com (Accessed on Jun. 20, 2019). BIOGRAPHIES Cheng Chen is a Wireless Standards Research Engineer with the Next Generation and Standards Group at Intel Corporation. He has been an active contributor to IEEE 802.11ay, and was heavily involved in the deﬁnition o...

work page 2019