Search Results for author: Ahmed Alkhateeb

Found 60 papers, 18 papers with code

Digital Twins for Supporting AI Research with Autonomous Vehicle Networks

no code implementations1 Apr 2024 Anıl Gürses, Gautham Reddy, Saad Masrur, Özgür Özdemir, İsmail Güvenç, Mihail L. Sichitiu, Alphan Şahin, Ahmed Alkhateeb, Rudra Dutta

Digital twins (DTs), which are virtual environments that simulate, predict, and optimize the performance of their physical counterparts, are envisioned to be essential technologies for advancing next-generation wireless networks.

Autonomous Vehicles

Joint and Robust Beamforming Framework for Integrated Sensing and Communication Systems

no code implementations14 Feb 2024 Jinseok Choi, Jeonghun Park, Namyoon Lee, Ahmed Alkhateeb

In this paper, we present a joint communication and radar beamforming framework for maximizing a sum spectral efficiency (SE) while guaranteeing desired radar performance with imperfect channel state information (CSI) in multi-user and multi-target ISAC systems.

Integrated Imaging and Communication with Reconfigurable Intelligent Surfaces

1 code implementation29 Jan 2024 Hao Luo, Ahmed Alkhateeb

In particular, using the RIS as a wireless imaging device, our system constructs the scene depth map of the environment, including the mobile user.

ISAC with Backscattering RFID Tags: Joint Beamforming Design

1 code implementation18 Jan 2024 Hao Luo, Umut Demirhan, Ahmed Alkhateeb

Then, we study a joint beamforming design problem with the goal of minimizing the total transmit power while satisfying the tag detection and communication requirements.

TAG

Vehicle Cameras Guide mmWave Beams: Approach and Real-World V2V Demonstration

no code implementations20 Aug 2023 Tawfik Osman, Gouranga Charan, Ahmed Alkhateeb

The developed solution is evaluated on a real-world multi-modal mmWave V2V communication dataset comprising co-existing 360 camera and mmWave beam training data.

Camera Based mmWave Beam Prediction: Towards Multi-Candidate Real-World Scenarios

no code implementations14 Aug 2023 Gouranga Charan, Muhammad Alrabeiah, Tawfik Osman, Ahmed Alkhateeb

The solutions developed so far, however, have mainly considered single-candidate scenarios, i. e., scenarios with a single candidate user in the visual scene, and were evaluated using synthetic datasets.

Millimeter Wave V2V Beam Tracking using Radar: Algorithms and Real-World Demonstration

1 code implementation3 Aug 2023 Hao Luo, Umut Demirhan, Ahmed Alkhateeb

Utilizing radar sensing for assisting communication has attracted increasing interest thanks to its potential in dynamic environments.

Real-World Evaluation of Full-Duplex Millimeter Wave Communication Systems

no code implementations20 Jul 2023 Ian P. Roberts, Yu Zhang, Tawfik Osman, Ahmed Alkhateeb

Noteworthy strides continue to be made in the development of full-duplex millimeter wave (mmWave) communication systems, but most of this progress has been built on theoretical models and validated through simulation.

Vision Guided MIMO Radar Beamforming for Enhanced Vital Signs Detection in Crowds

no code implementations18 Jun 2023 Shuaifeng Jiang, Ahmed Alkhateeb, Daniel W. Bliss, Yu Rong

Radar as a remote sensing technology has been used to analyze human activity for decades.

Real-Time Digital Twins: Vision and Research Directions for 6G and Beyond

no code implementations26 Jan 2023 Ahmed Alkhateeb, Shuaifeng Jiang, Gouranga Charan

This article presents a vision where \textit{real-time} digital twins of the physical wireless environments are continuously updated using multi-modal sensing data from the distributed infrastructure and user devices, and are used to make communication and sensing decisions.

Digital Twin Based Beam Prediction: Can we Train in the Digital World and Deploy in Reality?

no code implementations18 Jan 2023 Shuaifeng Jiang, Ahmed Alkhateeb

To address this challenge, we propose a novel direction that utilizes digital replicas of the physical world to reduce or even eliminate the MIMO channel acquisition overhead.

Sensing Aided Reconfigurable Intelligent Surfaces for 3GPP 5G Transparent Operation

1 code implementation24 Nov 2022 Shuaifeng Jiang, Ahmed Hindy, Ahmed Alkhateeb

Can reconfigurable intelligent surfaces (RISs) operate in a standalone mode that is completely transparent to the 3GPP 5G initial access process?

Device-Agnostic Millimeter Wave Beam Selection using Machine Learning

no code implementations22 Nov 2022 Sajad Rezaie, João Morais, Ahmed Alkhateeb, Carles Navarro Manchón

However, this design requires a specific model for each user-device beam codebook, where a model learned for a device with a particular codebook can not be reused for another device with a different codebook.

Proactively Predicting Dynamic 6G Link Blockages Using LiDAR and In-Band Signatures

no code implementations17 Nov 2022 Shunyao Wu, Chaitali Chakrabarti, Ahmed Alkhateeb

Given this future blockage prediction capability, the paper also shows that the developed solutions can achieve an order of magnitude saving in network latency, which further highlights the potential of the developed blockage prediction solutions for wireless networks.

Denoising

DeepSense 6G: A Large-Scale Real-World Multi-Modal Sensing and Communication Dataset

no code implementations17 Nov 2022 Ahmed Alkhateeb, Gouranga Charan, Tawfik Osman, Andrew Hredzak, João Morais, Umut Demirhan, Nikhil Srinivas

This article presents the DeepSense 6G dataset, which is a large-scale dataset based on real-world measurements of co-existing multi-modal sensing and communication data.

Reconfigurable Intelligent Surface Aided Wireless Sensing for Scene Depth Estimation

1 code implementation15 Nov 2022 Abdelrahman Taha, Hao Luo, Ahmed Alkhateeb

In this paper, we propose to employ RIS-aided wireless sensing systems for scene depth estimation.

Depth Estimation

Millimeter Wave Drones with Cameras: Computer Vision Aided Wireless Beam Prediction

no code implementations14 Nov 2022 Gouranga Charan, Andrew Hredzak, Ahmed Alkhateeb

Millimeter wave (mmWave) and terahertz (THz) drones have the potential to enable several futuristic applications such as coverage extension, enhanced security monitoring, and disaster management.

Management

Camera Aided Reconfigurable Intelligent Surfaces: Computer Vision Based Fast Beam Selection

no code implementations14 Nov 2022 Shuaifeng Jiang, Ahmed Hindy, Ahmed Alkhateeb

Reconfigurable intelligent surfaces (RISs) have attracted increasing interest due to their ability to improve the coverage, reliability, and energy efficiency of millimeter wave (mmWave) communication systems.

User Identification: A Key Enabler for Multi-User Vision-Aided Communications

no code implementations27 Oct 2022 Gouranga Charan, Ahmed Alkhateeb

In this paper, we define the \textit{user identification} task as a key enabler for realistic vision-aided communication systems that can operate in crowded scenarios and support multi-user applications.

Scene Understanding

Multi-Modal Beam Prediction Challenge 2022: Towards Generalization

no code implementations15 Sep 2022 Gouranga Charan, Umut Demirhan, João Morais, Arash Behboodi, Hamed Pezeshki, Ahmed Alkhateeb

In this paper, along with the detailed descriptions of the problem statement and the development dataset, we provide a baseline solution that utilizes the user position data to predict the optimal beam indices.

Management Position

Online Beam Learning with Interference Nulling for Millimeter Wave MIMO Systems

no code implementations9 Sep 2022 Yu Zhang, Tawfik Osman, Ahmed Alkhateeb

Furthermore, a hardware proof-of-concept prototype based on mmWave phased arrays is built and used to implement and evaluate the developed online beam learning solutions in realistic scenarios.

Integrated Sensing and Communication for 6G: Ten Key Machine Learning Roles

no code implementations3 Aug 2022 Umut Demirhan, Ahmed Alkhateeb

The article also presents real-world results for some of these machine learning roles based on the large-scale real-world dataset DeepSense 6G, which could be adopted in investigating a wide range of integrated sensing and communication problems.

BIG-bench Machine Learning

Computer Vision Aided mmWave Beam Alignment in V2X Communications

no code implementations23 Jul 2022 Weihua Xu, Feifei Gao, Xiaoming Tao, Jianhua Zhang, Ahmed Alkhateeb

Visual information, captured for example by cameras, can effectively reflect the sizes and locations of the environmental scattering objects, and thereby can be used to infer communications parameters like propagation directions, receiver powers, as well as the blockage status.

3D Object Detection object-detection

Towards Real-World 6G Drone Communication: Position and Camera Aided Beam Prediction

no code implementations24 May 2022 Gouranga Charan, Andrew Hredzak, Christian Stoddard, Benjamin Berrey, Madhav Seth, Hector Nunez, Ahmed Alkhateeb

Millimeter-wave (mmWave) and terahertz (THz) communication systems typically deploy large antenna arrays to guarantee sufficient receive signal power.

Position

Location- and Orientation-aware Millimeter Wave Beam Selection for Multi-Panel Antenna Devices

no code implementations22 Mar 2022 Sajad Rezaie, João Morais, Elisabeth de Carvalho, Ahmed Alkhateeb, Carles Navarro Manchón

While initial beam alignment (BA) in millimeter-wave networks has been thoroughly investigated, most research assumes a simplified terminal model based on uniform linear/planar arrays with isotropic antennas.

LiDAR Aided Future Beam Prediction in Real-World Millimeter Wave V2I Communications

no code implementations10 Mar 2022 Shuaifeng Jiang, Gouranga Charan, Ahmed Alkhateeb

A machine learning (ML) model that leverages the LiDAR sensory data to predict the current and future beams was developed.

Computer Vision Aided Blockage Prediction in Real-World Millimeter Wave Deployments

no code implementations3 Mar 2022 Gouranga Charan, Ahmed Alkhateeb

This paper provides the first real-world evaluation of using visual (RGB camera) data and machine learning for proactively predicting millimeter wave (mmWave) dynamic link blockages before they happen.

Management

Autoencoder-based Communications with Reconfigurable Intelligent Surfaces

no code implementations8 Dec 2021 Tugba Erpek, Yalin E. Sagduyu, Ahmed Alkhateeb, Aylin Yener

This paper presents a novel approach for the joint design of a reconfigurable intelligent surface (RIS) and a transmitter-receiver pair that are trained together as a set of deep neural networks (DNNs) to optimize the end-to-end communication performance at the receiver.

Radar Aided Proactive Blockage Prediction in Real-World Millimeter Wave Systems

no code implementations29 Nov 2021 Umut Demirhan, Ahmed Alkhateeb

The sensitivity of these high-frequency LOS links to blockages, however, challenges the reliability and latency requirements of these communication networks.

Object Tracking

Computer Vision Aided Beam Tracking in A Real-World Millimeter Wave Deployment

no code implementations29 Nov 2021 Shuaifeng Jiang, Ahmed Alkhateeb

Our proposed approach is evaluated on a large-scale real-world dataset, where it achieves an accuracy of $64. 47\%$ (and a normalized receive power of $97. 66\%$) in predicting the future beam.

Management

LiDAR-Aided Mobile Blockage Prediction in Real-World Millimeter Wave Systems

no code implementations18 Nov 2021 Shunyao Wu, Chaitali Chakrabarti, Ahmed Alkhateeb

If used for proactive hand-off, the proposed solutions can potentially provide an order of magnitude saving in the network latency, which highlights a promising direction for addressing the blockage challenges in mmWave/sub-THz networks.

Denoising

Radar Aided 6G Beam Prediction: Deep Learning Algorithms and Real-World Demonstration

no code implementations18 Nov 2021 Umut Demirhan, Ahmed Alkhateeb

This awareness could be utilized to reduce or even eliminate the beam training overhead in millimeter wave (mmWave) and sub-terahertz (THz) MIMO communication systems, which enables a wide range of highly-mobile low-latency applications.

Management

Blockage Prediction Using Wireless Signatures: Deep Learning Enables Real-World Demonstration

no code implementations16 Nov 2021 Shunyao Wu, Muhammad Alrabeiah, Chaitali Chakrabarti, Ahmed Alkhateeb

In this paper, we propose a novel solution that relies only on in-band mmWave wireless measurements to proactively predict future dynamic line-of-sight (LOS) link blockages.

Vision-Position Multi-Modal Beam Prediction Using Real Millimeter Wave Datasets

no code implementations15 Nov 2021 Gouranga Charan, Tawfik Osman, Andrew Hredzak, Ngwe Thawdar, Ahmed Alkhateeb

Enabling highly-mobile millimeter wave (mmWave) and terahertz (THz) wireless communication applications requires overcoming the critical challenges associated with the large antenna arrays deployed at these systems.

Position

Design and Evaluation of Reconfigurable Intelligent Surfaces in Real-World Environment

no code implementations16 Sep 2021 Georgios C. Trichopoulos, Panagiotis Theofanopoulos, Bharath Kashyap, Aditya Shekhawat, Anuj Modi, Tawfik Osman, Sanjay Kumar, Anand Sengar, Arkajyoti Chang, Ahmed Alkhateeb

These results, among others, draw useful insights into the design and performance of RIS systems and provide an important proof for their potential gains in real-world far-field wireless communication environments.

Computer Vision Aided URLL Communications: Proactive Service Identification and Coexistence

no code implementations18 Mar 2021 Muhammad Alrabeiah, Umut Demirhan, Andrew Hredzak, Ahmed Alkhateeb

To demonstrate the potential of the proposed framework, a wireless network scenario with two coexisting URLL and eMBB services is considered, and two deep learning algorithms are designed to utilize RGB video frames and predict incoming service type and its request time.

Deep Learning for THz Drones with Flying Intelligent Surfaces: Beam and Handoff Prediction

no code implementations22 Feb 2021 Nof Abuzainab, Muhammad Alrabeiah, Ahmed Alkhateeb, Yalin E. Sagduyu

To integrate RISs into THz drone communications, we propose a novel deep learning solution based on a recurrent neural network, namely the Gated Recurrent Unit (GRU), that proactively predicts the serving base station/RIS and the serving beam for each drone based on the prior observations of drone location/beam trajectories.

Information Theory Networking and Internet Architecture Information Theory

Vision-Aided 6G Wireless Communications: Blockage Prediction and Proactive Handoff

1 code implementation18 Feb 2021 Gouranga Charan, Muhammad Alrabeiah, Ahmed Alkhateeb

This paper presents a complete machine learning framework for enabling proaction in wireless networks relying on visual data captured, for example, by RGB cameras deployed at the base stations.

Millimeter Wave MIMO based Depth Maps for Wireless Virtual and Augmented Reality

no code implementations11 Feb 2021 Abdelrahman Taha, Qi Qu, Sam Alex, Ping Wang, William L. Abbott, Ahmed Alkhateeb

Accounting for the constraints on these systems, we develop a comprehensive framework for constructing accurate and high-resolution depth maps using mmWave systems.

Deep Learning based Antenna Selection and CSI Extrapolation in Massive MIMO Systems

no code implementations18 Jan 2021 Bo Lin, Feifei Gao, Shun Zhang, Ting Zhou, Ahmed Alkhateeb

A critical bottleneck of massive multiple-input multiple-output (MIMO) system is the huge training overhead caused by downlink transmission, like channel estimation, downlink beamforming and covariance observation.

Combinatorial Optimization

Deep Learning for Moving Blockage Prediction using Real Millimeter Wave Measurements

no code implementations18 Jan 2021 Shunyao Wu, Muhammad Alrabeiah, Andrew Hredzak, Chaitali Chakrabarti, Ahmed Alkhateeb

To evaluate our proposed approach, we build a mmWave communication setup with a moving blockage and collect a dataset of received power sequences.

BIG-bench Machine Learning

Deep Multimodal Learning: Merging Sensory Data for Massive MIMO Channel Prediction

no code implementations18 Jul 2020 Yuwen Yang, Feifei Gao, Chengwen Xing, Jianping An, Ahmed Alkhateeb

However, the research on MSI aided intelligent communications has not yet explored how to integrate and fuse the multimodal sensory data, which motivates us to develop a systematic framework for wireless communications based on deep multimodal learning (DML).

Neural Networks Based Beam Codebooks: Learning mmWave Massive MIMO Beams that Adapt to Deployment and Hardware

1 code implementation25 Jun 2020 Muhammad Alrabeiah, Yu Zhang, Ahmed Alkhateeb

To overcome these limitations, this paper develops an efficient online machine learning framework that learns how to adapt the codebook beam patterns to the specific deployment, surrounding environment, user distribution, and hardware characteristics.

Vision-Aided Dynamic Blockage Prediction for 6G Wireless Communication Networks

no code implementations17 Jun 2020 Gouranga Charan, Muhammad Alrabeiah, Ahmed Alkhateeb

Unlocking the full potential of millimeter-wave and sub-terahertz wireless communication networks hinges on realizing unprecedented low-latency and high-reliability requirements.

Learning Beam Codebooks with Neural Networks: Towards Environment-Aware mmWave MIMO

1 code implementation25 Feb 2020 Yu Zhang, Muhammad Alrabeiah, Ahmed Alkhateeb

This leads to high beam training overhead and loss in the achievable beamforming gains.

Information Theory Signal Processing Information Theory

ViWi Vision-Aided mmWave Beam Tracking: Dataset, Task, and Baseline Solutions

1 code implementation6 Feb 2020 Muhammad Alrabeiah, Jayden Booth, Andrew Hredzak, Ahmed Alkhateeb

These capabilities have the potential of reliably supporting highly-mobile applications such as vehicular/drone communications and wireless virtual/augmented reality in mmWave and terahertz systems.

Deep Transfer Learning Based Downlink Channel Prediction for FDD Massive MIMO Systems

1 code implementation27 Dec 2019 Yuwen Yang, Feifei Gao, Zhimeng Zhong, Bo Ai, Ahmed Alkhateeb

Specifically, we develop the direct-transfer algorithm based on the fully-connected neural network architecture, where the network is trained on the data from all previous environments in the manner of classical deep learning and is then fine-tuned for new environments.

Meta-Learning Transfer Learning

3D Scene Based Beam Selection for mmWave Communications

no code implementations19 Nov 2019 Weihua Xu, Feifei Gao, Shi Jin, Ahmed Alkhateeb

In this paper, we present a novel framework of 3D scene based beam selection for mmWave communications that relies only on the environmental data and deep learning techniques.

3D Scene Reconstruction Position

Millimeter Wave Base Stations with Cameras: Vision Aided Beam and Blockage Prediction

1 code implementation14 Nov 2019 Muhammad Alrabeiah, Andrew Hredzak, Ahmed Alkhateeb

This paper investigates a novel research direction that leverages vision to help overcome the critical wireless communication challenges.

Information Theory Signal Processing Information Theory

Deep Learning for Massive MIMO with 1-Bit ADCs: When More Antennas Need Fewer Pilots

1 code implementation15 Oct 2019 Yu Zhang, Muhammad Alrabeiah, Ahmed Alkhateeb

This leads to the interesting, and \textit{counter-intuitive}, observation that when more antennas are employed by the massive MIMO base station, our proposed deep learning approach achieves better channel estimation performance, for the same pilot sequence length.

Information Theory Signal Processing Information Theory

Deep Learning for mmWave Beam and Blockage Prediction Using Sub-6GHz Channels

2 code implementations7 Oct 2019 Muhammad Alrabeiah, Ahmed Alkhateeb

Prior work, however, has focused on extracting spatial channel characteristics at the sub-6GHz band first and then use them to reduce the mmWave beam training overhead.

Information Theory Signal Processing Information Theory

Deep Learning Predictive Band Switching in Wireless Networks

1 code implementation2 Oct 2019 Faris B. Mismar, Ahmad AlAmmouri, Ahmed Alkhateeb, Jeffrey G. Andrews, Brian L. Evans

Our proposed classifier-based band switching policy instead exploits spatial and spectral correlation between radio frequency signals in different bands based on knowledge of the UE location.

Deep Learning for Direct Hybrid Precoding in Millimeter Wave Massive MIMO Systems

2 code implementations30 May 2019 Xiaofeng Li, Ahmed Alkhateeb

For example, for a system of 64 transmit and 64 receive antennas, with 3 RF chains at both sides, the proposed solution needs only 8 or 16 channel training pilots to directly predict the RF beamforming/combining vectors of the hybrid architectures and achieve near-optimal achievable rates.

Information Theory Signal Processing Information Theory

Enabling Large Intelligent Surfaces with Compressive Sensing and Deep Learning

1 code implementation23 Apr 2019 Abdelrahman Taha, Muhammad Alrabeiah, Ahmed Alkhateeb

We show that the achievable rates of the proposed compressive sensing and deep learning solutions approach the upper bound, that assumes perfect channel knowledge, with negligible training overhead and with less than 1% of the elements being active.

Information Theory Signal Processing Information Theory

DeepMIMO: A Generic Deep Learning Dataset for Millimeter Wave and Massive MIMO Applications

3 code implementations18 Feb 2019 Ahmed Alkhateeb

Second, the DeepMIMO dataset is generic/parameterized as the researcher can adjust a set of system and channel parameters to tailor the generated DeepMIMO dataset for the target machine learning application.

Information Theory Signal Processing Information Theory

Generative Adversarial Estimation of Channel Covariance in Vehicular Millimeter Wave Systems

no code implementations7 Aug 2018 Xiaofeng Li, Ahmed Alkhateeb, Cihan Tepedelenlioğlu

Enabling highly-mobile millimeter wave (mmWave) systems is challenging because of the huge training overhead associated with acquiring the channel knowledge or designing the narrow beams.

Information Theory Information Theory

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