Search Results for author: David J. Love

Found 33 papers, 4 papers with code

Multi-Agent Hybrid SAC for Joint SS-DSA in CRNs

no code implementations22 Apr 2024 David R. Nickel, Anindya Bijoy Das, David J. Love, Christopher G. Brinton

In CRNs, both spectrum sensing and resource allocation (SSRA) are critical to maximizing system throughput while minimizing collisions of secondary users with the primary network.

Multi-agent Reinforcement Learning

Minimum Description Feature Selection for Complexity Reduction in Machine Learning-based Wireless Positioning

no code implementations21 Apr 2024 Myeung Suk Oh, Anindya Bijoy Das, Taejoon Kim, David J. Love, Christopher G. Brinton

In this work, we design a novel positioning neural network (P-NN) that utilizes the minimum description features to substantially reduce the complexity of deep learning-based WP.

Simulation-Enhanced Data Augmentation for Machine Learning Pathloss Prediction

no code implementations3 Feb 2024 Ahmed P. Mohamed, Byunghyun Lee, Yaguang Zhang, Max Hollingsworth, C. Robert Anderson, James V. Krogmeier, David J. Love

To alleviate these challenges, this paper introduces a novel simulation-enhanced data augmentation method for ML pathloss prediction.

Data Augmentation

Coding for Gaussian Two-Way Channels: Linear and Learning-Based Approaches

no code implementations31 Dec 2023 JungHoon Kim, Taejoon Kim, Anindya Bijoy Das, Seyyedali Hosseinalipour, David J. Love, Christopher G. Brinton

In this work, we aim to enhance and balance the communication reliability in GTWCs by minimizing the sum of error probabilities via joint design of encoders and decoders at the users.

Cooperative Federated Learning over Ground-to-Satellite Integrated Networks: Joint Local Computation and Data Offloading

no code implementations23 Dec 2023 Dong-Jun Han, Seyyedali Hosseinalipour, David J. Love, Mung Chiang, Christopher G. Brinton

While network coverage maps continue to expand, many devices located in remote areas remain unconnected to terrestrial communication infrastructures, preventing them from getting access to the associated data-driven services.

Federated Learning Management

Constant Modulus Waveform Design with Block-Level Interference Exploitation for DFRC Systems

no code implementations16 Oct 2023 Byunghyun Lee, Anindya Bijoy Das, David J. Love, Christopher G. Brinton, James V. Krogmeier

Dual-functional radar-communication (DFRC) is a promising technology where radar and communication functions operate on the same spectrum and hardware.

A Reinforcement Learning-Based Approach to Graph Discovery in D2D-Enabled Federated Learning

no code implementations7 Aug 2023 Satyavrat Wagle, Anindya Bijoy Das, David J. Love, Christopher G. Brinton

Augmenting federated learning (FL) with direct device-to-device (D2D) communications can help improve convergence speed and reduce model bias through rapid local information exchange.

Federated Learning Reinforcement Learning (RL)

Dynamic and Robust Sensor Selection Strategies for Wireless Positioning with TOA/RSS Measurement

no code implementations30 Apr 2023 Myeung Suk Oh, Seyyedali Hosseinalipour, Taejoon Kim, David J. Love, James V. Krogmeier, Christopher G. Brinton

For dynamic sensor selection, two greedy selection strategies are proposed, each of which exploits properties revealed in the derived CRLB expressions.

Towards Cooperative Federated Learning over Heterogeneous Edge/Fog Networks

no code implementations15 Mar 2023 Su Wang, Seyyedali Hosseinalipour, Vaneet Aggarwal, Christopher G. Brinton, David J. Love, Weifeng Su, Mung Chiang

Federated learning (FL) has been promoted as a popular technique for training machine learning (ML) models over edge/fog networks.

Federated Learning

Challenges and Opportunities for Beyond-5G Wireless Security

no code implementations1 Mar 2023 Eric Ruzomberka, David J. Love, Christopher G. Brinton, Arpit Gupta, Chih-Chun Wang, H. Vincent Poor

The demand for broadband wireless access is driving research and standardization of 5G and beyond-5G wireless systems.

Coded Matrix Computations for D2D-enabled Linearized Federated Learning

no code implementations23 Feb 2023 Anindya Bijoy Das, Aditya Ramamoorthy, David J. Love, Christopher G. Brinton

Federated learning (FL) is a popular technique for training a global model on data distributed across client devices.

Federated Learning

Propagation Measurements and Analyses at 28 GHz via an Autonomous Beam-Steering Platform

1 code implementation16 Feb 2023 Bharath Keshavamurthy, Yaguang Zhang, Christopher R. Anderson, Nicolo Michelusi, James V. Krogmeier, David J. Love

This paper details the design of an autonomous alignment and tracking platform to mechanically steer directional horn antennas in a sliding correlator channel sounder setup for 28 GHz V2X propagation modeling.

A Decentralized Pilot Assignment Algorithm for Scalable O-RAN Cell-Free Massive MIMO

no code implementations12 Jan 2023 Myeung Suk Oh, Anindya Bijoy Das, Seyyedali Hosseinalipour, Taejoon Kim, David J. Love, Christopher G. Brinton

Radio access networks (RANs) in monolithic architectures have limited adaptability to supporting different network scenarios.

Defending Adversarial Attacks on Deep Learning Based Power Allocation in Massive MIMO Using Denoising Autoencoders

1 code implementation28 Nov 2022 Rajeev Sahay, Minjun Zhang, David J. Love, Christopher G. Brinton

Recent work has advocated for the use of deep learning to perform power allocation in the downlink of massive MIMO (maMIMO) networks.

Denoising regression

A Neural Network-Prepended GLRT Framework for Signal Detection Under Nonlinear Distortions

no code implementations15 Jun 2022 Rajeev Sahay, Swaroop Appadwedula, David J. Love, Christopher G. Brinton

Many communications and sensing applications hinge on the detection of a signal in a noisy, interference-heavy environment.

Nonparametric Decentralized Detection and Sparse Sensor Selection via Multi-Sensor Online Kernel Scalar Quantization

no code implementations21 May 2022 Jing Guo, Raghu G. Raj, David J. Love, Christopher G. Brinton

Moreover, we are interested in sparse sensor selection using a marginalized weighted kernel approach to improve network resource efficiency by disabling less reliable sensors with minimal effect on classification performance. To achieve our goals, we develop a multi-sensor online kernel scalar quantization (MSOKSQ) learning strategy that operates on the sensor outputs at the fusion center.

Classification Quantization

Deep Reinforcement Learning-Based Adaptive IRS Control with Limited Feedback Codebooks

no code implementations7 May 2022 JungHoon Kim, Seyyedali Hosseinalipour, Andrew C. Marcum, Taejoon Kim, David J. Love, Christopher G. Brinton

Intelligent reflecting surfaces (IRS) consist of configurable meta-atoms, which can alter the wireless propagation environment through design of their reflection coefficients.

reinforcement-learning Reinforcement Learning (RL)

Multi-Edge Server-Assisted Dynamic Federated Learning with an Optimized Floating Aggregation Point

no code implementations26 Mar 2022 Bhargav Ganguly, Seyyedali Hosseinalipour, Kwang Taik Kim, Christopher G. Brinton, Vaneet Aggarwal, David J. Love, Mung Chiang

CE-FL also introduces floating aggregation point, where the local models generated at the devices and the servers are aggregated at an edge server, which varies from one model training round to another to cope with the network evolution in terms of data distribution and users' mobility.

Distributed Optimization Federated Learning

Latency Optimization for Blockchain-Empowered Federated Learning in Multi-Server Edge Computing

no code implementations18 Mar 2022 Dinh C. Nguyen, Seyyedali Hosseinalipour, David J. Love, Pubudu N. Pathirana, Christopher G. Brinton

To assist the ML model training for resource-constrained MDs, we develop an offloading strategy that enables MDs to transmit their data to one of the associated ESs.

Edge-computing Federated Learning +1

Parallel Successive Learning for Dynamic Distributed Model Training over Heterogeneous Wireless Networks

no code implementations7 Feb 2022 Seyyedali Hosseinalipour, Su Wang, Nicolo Michelusi, Vaneet Aggarwal, Christopher G. Brinton, David J. Love, Mung Chiang

PSL considers the realistic scenario where global aggregations are conducted with idle times in-between them for resource efficiency improvements, and incorporates data dispersion and model dispersion with local model condensation into FedL.

Federated Learning

Compressed Training for Dual-Wideband Time-Varying Sub-Terahertz Massive MIMO

no code implementations4 Jan 2022 Tzu-Hsuan Chou, Nicolo Michelusi, David J. Love, James V. Krogmeier

6G operators may use millimeter wave (mmWave) and sub-terahertz (sub-THz) bands to meet the ever-increasing demand for wireless access.

Learning-Based Adaptive IRS Control with Limited Feedback Codebooks

no code implementations3 Dec 2021 JungHoon Kim, Seyyedali Hosseinalipour, Andrew C. Marcum, Taejoon Kim, David J. Love, Christopher G. Brinton

We consider a practical setting where (i) the IRS reflection coefficients are achieved by adjusting tunable elements embedded in the meta-atoms, (ii) the IRS reflection coefficients are affected by the incident angles of the incoming signals, (iii) the IRS is deployed in multi-path, time-varying channels, and (iv) the feedback link from the base station to the IRS has a low data rate.

A Robotic Antenna Alignment and Tracking System for Millimeter Wave Propagation Modeling

1 code implementation14 Oct 2021 Bharath Keshavamurthy, Yaguang Zhang, Christopher R. Anderson, Nicolo Michelusi, James V. Krogmeier, David J. Love

In this paper, we discuss the design of a sliding-correlator channel sounder for 28 GHz propagation modeling on the NSF POWDER testbed in Salt Lake City, UT.

A Deep Ensemble-based Wireless Receiver Architecture for Mitigating Adversarial Attacks in Automatic Modulation Classification

no code implementations8 Apr 2021 Rajeev Sahay, Christopher G. Brinton, David J. Love

Furthermore, adversarial interference is transferable in black box environments, allowing an adversary to attack multiple deep learning models with a single perturbation crafted for a particular classification model.

Classification General Classification

Channel Estimation via Successive Denoising in MIMO OFDM Systems: A Reinforcement Learning Approach

no code implementations25 Jan 2021 Myeung Suk Oh, Seyyedali Hosseinalipour, Taejoon Kim, Christopher G. Brinton, David J. Love

Our methodology includes a new successive channel denoising process based on channel curvature computation, for which we obtain a channel curvature magnitude threshold to identify unreliable channel estimates.

Denoising Q-Learning +2

Frequency-based Automated Modulation Classification in the Presence of Adversaries

no code implementations2 Nov 2020 Rajeev Sahay, Christopher G. Brinton, David J. Love

Automatic modulation classification (AMC) aims to improve the efficiency of crowded radio spectrums by automatically predicting the modulation constellation of wireless RF signals.

Classification General Classification

Fast Position-Aided MIMO Beam Training via Noisy Tensor Completion

no code implementations5 Aug 2020 Tzu-Hsuan Chou, Nicolo Michelusi, David J. Love, James V. Krogmeier

A data tensor is constructed by collecting beam-training measurements on a subset of positions and beams, and a hybrid noisy tensor completion (HNTC) algorithm is proposed to predict the received power across the coverage area, which exploits both the spatial smoothness and the low-rank property of MIMO channels.

Position

Minimum Overhead Beamforming and Resource Allocation in D2D Edge Networks

no code implementations25 Jul 2020 JungHoon Kim, Taejoon Kim, Morteza Hashemi, Christopher G. Brinton, David J. Love

Device-to-device (D2D) communications is expected to be a critical enabler of distributed computing in edge networks at scale.

Distributed Computing Management

Multi-Stage Hybrid Federated Learning over Large-Scale D2D-Enabled Fog Networks

1 code implementation18 Jul 2020 Seyyedali Hosseinalipour, Sheikh Shams Azam, Christopher G. Brinton, Nicolo Michelusi, Vaneet Aggarwal, David J. Love, Huaiyu Dai

We derive the upper bound of convergence for MH-FL with respect to parameters of the network topology (e. g., the spectral radius) and the learning algorithm (e. g., the number of D2D rounds in different clusters).

Federated Learning

Joint Optimization of Signal Design and Resource Allocation in Wireless D2D Edge Computing

no code implementations27 Feb 2020 JungHoon Kim, Taejoon Kim, Morteza Hashemi, Christopher G. Brinton, David J. Love

In this paper, unlike previous mobile edge computing (MEC) approaches, we propose a joint optimization of wireless MIMO signal design and network resource allocation to maximize energy efficiency.

Networking and Internet Architecture Signal Processing

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