Beamforming - PowerPoint PPT Presentation


Understanding Coordinated Beamforming and MU-MIMO in IEEE 802.11-23/1998r0

This document delves into the intricacies of Coordinated Beamforming (Co-BF) and MU-MIMO techniques in the context of IEEE 802.11-23/1998r0 standard. It explores the concept of nulling in Co-BF, handling more Rx antennas than streams, Zero-Forcing precoding to eliminate Multi-User Interference (MUI)

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Channel Information Feedback Enhancement for Improved Beamforming Performance

Beamforming plays a crucial role in achieving high throughput in wireless networks, but issues with discontinuity in beamforming lead to performance limitations. This document discusses the challenges with current beamforming practices and proposes a solution by increasing feedback overhead to enhan

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ML-Aided Channel Classification for WLAN Optimization

The paper discusses using machine learning to classify IEEE channel models and improve WLAN performance. It demonstrates how neural networks can accurately classify channel types, leading to efficient beamforming and signal processing. Simulation results show the classification performance even at l

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Design Considerations for Partial Bandwidth Information in IEEE 802.11-20/1747r1

Design considerations for partial bandwidth information in the IEEE 802.11-20/1747r1 standard are discussed, focusing on EHT NDPA frame structure, feedback mechanisms, bitmap design, and table-based designs to support large RU/MRUs. The feedback mechanism utilizes bitmap resolution signals, providin

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Discussion on Enabling MIMO in IMMW: IEEE 802.11-23/1991

Enabling MIMO in mmWave technology is essential for improving throughput performance. While IEEE 802.11ad supports single-stream communications, 802.11ay introduces SU-MIMO, MU-MIMO, and hybrid beamforming. This document discusses the necessity of MIMO in IMMW and explores various MIMO options for e

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IEEE 802.11-19/1517r0 TDD Beamforming Configuration Overview

IEEE 802.11-19/1517r0 discusses TDD beamforming operations related to Beam Measurement in the standard. Before Draft 4.0, these operations were primarily initiated by SME, causing limitations due to proprietary network controllers. The document reviews gaps and improvements in TDD beamforming, aimin

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IEEE 802.11-22/1820r0: Accuracy and Compression of TXBF Feedbacks

This document discusses the accuracy and compression of Transmit Beamforming (TXBF) feedbacks based on Optimal Singular Value Decomposition (SVD). It covers the background, optimal SVD-based TXBF feedback (Decimation), simulation results, and proposals for overhead reduction schemes in the context o

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IEEE 802.11-18/0477r0 Punctured NDP Proposal

This document discusses proposals for puncturing Non-Data-Portion (NDP) in high-efficiency wireless network communication. The focus is on modifying the NDP structure to account for punctured channels and improving beamforming feedback computation. Detailed procedures are outlined for handling punct

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Unintentional Beamforming in IEEE 802.11-19/2032r4

Contribution on unintentional beamforming in IEEE 802.11-19/2032r4 addressing potential problems and solutions for secure ranging, involving issues with signal interference and power diminishing. Discussions include the impact on received power and robustness enhancements for signal transmission.

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Introduction to Microphone Array Beamforming: MATLAB Tutorial Series

Explore microphone array beamforming techniques in this MATLAB tutorial series by Pouyan Ebrahimbabaie from the Laboratory for Signal and Image Exploitation at the University of Liège, Belgium. Learn about acoustic array geometry, signal processing, time-delay beamforming, and more to enhance audio

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Progress Update on Phased Array Feeds Project - June 2015

In June 2015, progress was reported on the Phased Array Feeds project, highlighting successful tests at the Green Bank Telescope (GBT). The collaboration included advancements in beamforming technology, backend bandwidth expansion, and instrumentation upgrades. Despite some discrepancies between mod

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Enhancements in Multi-Stage Beamforming Training for IEEE 802.11ay

IEEE 802.11ay introduces improvements in beamforming training procedures for efficiency and MIMO support. The multi-stage, multi-resolution beamforming training framework enhances beamforming efficiency with high-resolution beams. The proposal includes a Sector Sweep frame and support for up to 2048

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Unintentional Beamforming Issue in IEEE 802.11-19/1572r5 Secure-LTF Design

This document addresses a potential problem in the secure LTF sequence design of IEEE 802.11-19/1572r5, focusing on unintentional beamforming during multi-stream scenarios which can lead to dynamic range complications at the receiver. The proposal offers a solution to mitigate this issue by revising

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Coordinated Beamforming/Null Steering Protocol in IEEE 802.11be

Coordinated beamforming/null steering is a promising scheme in IEEE 802.11be for joint transmission/reception challenges. This protocol aims to efficiently realize gains by establishing semi-static inter-AP coordination, enhancing spatial reuse opportunities, implementing CSI acquisition, and managi

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Multi-Stage, Multi-Resolution Beamforming Training for IEEE 802.11ay

In September 2016, a proposal was introduced to enhance the beamforming training procedures in IEEE 802.11ay for increased efficiency and MIMO support. The proposal suggests a multi-stage, multi-resolution beamforming training framework to improve efficiency in scenarios with high-resolution beams a

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IEEE 802.11-23/711r0 May 2023 Document Summary: Enhanced Link Adaptation Discussions

The May 2023 document IEEE 802.11-23/711r0 discusses topics like beamforming feedback, closed-loop rate adaptations, and issues related to beamforming feedback in a wireless communication context. It elaborates on the challenges of feedback optimization and post-SNR degradation, suggesting solutions

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IEEE 802.11-17/0322r1 BRP Transmit Sector Sweep Protocol

This presentation introduces a sector sweep protocol for beamforming training using BRP frames in IEEE 802.11-17/0322r1 standard. The protocol aims to enhance the efficiency of transmit sector sweep processes for devices with multiple antennas/subarrays, operating over specified frequency channels.

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Techniques for Additional Overhead Reduction in Mixed Beamforming Feedback

Explore the properties of Mixed Beamforming (Mixed BF) and discover a method to reduce feedback size while maintaining high performance. Dive into the analysis of narrowband precoder properties to identify opportunities for size reduction without significant impact on total power. Enhance your under

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Discussion on Multi-AP Coordination Architecture in IEEE 802.11-23

In this document, Xiaofei Wang from InterDigital Communication Inc. discusses the architecture required for multi-AP operations, seamless roaming support, and general MLD operation support in the context of IEEE 802.11-23 standards. The focus is on coordinating various operations across multiple APs

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Multi-AP Coordination for Low Latency Traffic Transmission

The document discusses the integration of multi-access point (AP) coordination to enhance the transmission of low-latency traffic in wireless networks. It addresses the challenges and introduces modes of operation capable of reducing latency and improving reliability for low-latency (LL) traffic tra

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Performance Evaluation of Parameterized Spatial Reuse with Coordinated Beamforming for IEEE 802.11be

The study focuses on assessing the performance of parameterized spatial reuse (PSR) with coordinated beamforming/null steering for IEEE 802.11be. The framework allows coordinated sharing of uplink transmission opportunities among APs, demonstrating gains in synchronous coordinated beamforming system

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Performance Evaluation of Coordinated Beamforming with Parameterized Spatial Reuse in IEEE 802.11be

The document discusses the performance evaluation of coordinated beamforming with parameterized spatial reuse (PSR) in IEEE 802.11be. It explores the practical operation of the 802.11ax PSR framework with null steering and the key implementation benefits, emphasizing unsynchronized operation and ada

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Channel Information Feedback for Beamforming Enhancement

Beamforming is essential for achieving high throughput in wireless communication, but it still requires improvements, especially when combined with channel smoothing techniques. This document discusses the challenges of discontinuities in beam-steering matrices and proposes a feedback mechanism for

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Smooth Beamforming with Feedback Overhead Reduction in IEEE 802.11-23

This document discusses a method for reducing feedback overhead in smooth beamforming to optimize phase rotations for V matrix in IEEE 802.11-23 standard. It explores V matrix optimization, column-wise phase shift, and beamformer side optimization to achieve channel smoothing gain at the receiver si

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Optimal SVD Based TXBF for Next-Gen WiFi Development

This November 2022 document focuses on the application of Optimal Singular Value Decomposition (SVD) in Transmit Beamforming (TXBF) for the next generation of WiFi standards. It discusses the background, objectives of UHR/SG, advantages of Optimal SVD-based TXBF, simulation results, and potential ch

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Channel Generation Process for IEEE 802.11aj (45GHz) Based on Channel Measurement

This presentation by Haiming Wang and team from SEU/CWPAN discusses the process of channel realization and generation in the 45 GHz bandwidth. It covers the generation of the channel impulse response, modeling of parameters, statistical measurements, and future work related to the 802.11ad standard.

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