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09/05/2023
The Impact of SAR-ADC Mismatch on Quantized Massive MU-MIMO Systems
Low-resolution analog-to-digital converters (ADCs) in massive multi-user...
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08/28/2023
Joint Active User Detection, Channel Estimation, and Data Detection for Massive Grant-Free Transmission in Cell-Free Systems
Cell-free communication has the potential to significantly improve grant...
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08/28/2023
Channel Charting in Real-World Coordinates
Channel charting is an emerging self-supervised method that maps channel...
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05/02/2023
Universal MIMO Jammer Mitigation via Secret Temporal Subspace Embeddings
MIMO processing enables jammer mitigation through spatial filtering, pro...
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04/17/2023
Wireless Channel Charting: Theory, Practice, and Applications
Channel charting is a recently proposed framework that applies dimension...
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12/23/2022
Alternating Projections Method for Joint Precoding and Peak-to-Average-Power Ratio Reduction
Orthogonal frequency-division multiplexing (OFDM) time-domain signals ex...
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12/15/2022
DUIDD: Deep-Unfolded Interleaved Detection and Decoding for MIMO Wireless Systems
Iterative detection and decoding (IDD) is known to achieve near-capacity...
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11/15/2022
Attacking and Defending Deep-Learning-Based Off-Device Wireless Positioning Systems
Localization services for wireless devices play an increasingly importan...
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11/14/2022
Joint Jammer Mitigation and Data Detection for Smart, Distributed, and Multi-Antenna Jammers
Multi-antenna (MIMO) processing is a promising solution to the problem o...
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10/25/2022
Bit Error and Block Error Rate Training for ML-Assisted Communication
Even though machine learning (ML) techniques are being widely used in co...
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08/02/2022
Mitigating Smart Jammers in Multi-User MIMO
Wireless systems must be resilient to jamming attacks. Existing mitigati...
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07/20/2022
Beam Alignment for the Cell-Free mmWave Massive MU-MIMO Uplink
Millimeter-wave (mmWave) cell-free massive multi-user (MU) multiple-inpu...
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06/23/2022
An Optimization-Based User Scheduling Framework for mmWave Massive MU-MIMO Systems
We propose a novel user equipment (UE) scheduling framework for millimet...
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01/21/2022
Mitigating Smart Jammers in MU-MIMO via Joint Channel Estimation and Data Detection
Wireless systems must be resilient to jamming attacks. Existing mitigati...
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12/01/2021
Soft-Output Joint Channel Estimation and Data Detection using Deep Unfolding
We propose a novel soft-output joint channel estimation and data detecti...
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10/29/2021
Joint Channel Estimation and Data Detection in Cell-Free Massive MU-MIMO Systems
We propose a joint channel estimation and data detection (JED) algorithm...
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10/28/2021
Feature Learning for Neural-Network-Based Positioning with Channel State Information
Recent channel state information (CSI)-based positioning pipelines rely ...
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10/21/2021
Improving Channel Charting using a Split Triplet Loss and an Inertial Regularizer
Channel charting is an emerging technology that enables self-supervised ...
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08/13/2021
Hardware-Aware Beamspace Precoding for All-Digital mmWave Massive MU-MIMO
Massive multi-user multiple-input multiple-output (MU-MIMO) wireless sys...
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07/14/2021
ℓ^p-ℓ^q-Norm Minimization for Joint Precoding and Peak-to-Average-Power Ratio Reduction
Wireless communication systems that rely on orthogonal frequency-divisio...
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07/14/2021
Optimality of the Discrete Fourier Transform for Beamspace Massive MU-MIMO Communication
Beamspace processing is an emerging technique to reduce baseband complex...
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12/24/2020
Distortion-Aware Linear Precoding for Massive MIMO Downlink Systems with Nonlinear Power Amplifiers
We introduce a framework for linear precoder design over a massive multi...
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11/10/2020
Blind SNR Estimation and Nonparametric Channel Denoising in Multi-Antenna mmWave Systems
We propose blind estimators for the average noise power, receive signal ...
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09/06/2020
CSI-Based Multi-Antenna and Multi-Point Indoor Positioning Using Probability Fusion
Channel state information (CSI)-based fingerprinting via neural networks...
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09/04/2020
Algorithm and VLSI Design for 1-bit Data Detection in Massive MIMO-OFDM
The use of low-resolution data converters in the radio-frequency (RF) ch...
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07/10/2020
Mismatched Data Detection in Massive MU-MIMO
We investigate mismatched data detection for massive multi-user (MU) mul...
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05/30/2020
Sparsity-Adaptive Beamspace Channel Estimation for 1-Bit mmWave Massive MIMO Systems
We propose sparsity-adaptive beamspace channel estimation algorithms tha...
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05/06/2020
Identifying Unused RF Channels Using Least Matching Pursuit
Cognitive radio aims at identifying unused radio-frequency (RF) bands wi...
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04/20/2020
Headless Horseman: Adversarial Attacks on Transfer Learning Models
Transfer learning facilitates the training of task-specific classifiers ...
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03/18/2020
Sparse Beamspace Equalization for Massive MU-MIMO mmWave Systems
We propose equalization-based data detection algorithms for all-digital ...
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01/28/2020
MSE-Optimal Neural Network Initialization via Layer Fusion
Deep neural networks achieve state-of-the-art performance for a range of...
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12/10/2019
Design Trade-offs for Decentralized Baseband Processing in Massive MU-MIMO Systems
Massive multi-user (MU) multiple-input multiple-output (MIMO) provides h...
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10/02/2019
Beamspace Channel Estimation for Massive MIMO mmWave Systems: Algorithm and VLSI Design
Millimeter-wave (mmWave) communication in combination with massive multi...
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09/29/2019
Siamese Neural Networks for Wireless Positioning and Channel Charting
Neural networks have been proposed recently for positioning and channel ...
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08/09/2019
A 354Mb/s 0.37mm^2 151mW 32-User 256-QAM Near-MAP Soft-Input Soft-Output Massive MU-MIMO Data Detector in 28nm CMOS
This paper presents a novel data detector ASIC for massive multiuser mul...
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08/08/2019
BEACHES: Beamspace Channel Estimation for Multi-Antenna mmWave Systems and Beyond
Massive multi-antenna millimeter wave (mmWave) and terahertz wireless sy...
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08/07/2019
Improving Channel Charting with Representation-Constrained Autoencoders
Channel charting (CC) has been proposed recently to enable logical posit...
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07/19/2019
PPAC: A Versatile In-Memory Accelerator for Matrix-Vector-Product-Like Operations
Processing in memory (PIM) moves computation into memories with the goal...
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07/16/2019
Massive MU-MIMO-OFDM Uplink with Direct RF-Sampling and 1-Bit ADCs
Advances in analog-to-digital converter (ADC) technology have opened up ...
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06/13/2019
Deep Unfolding for Communications Systems: A Survey and Some New Directions
Deep unfolding is a method of growing popularity that fuses iterative op...
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05/20/2019
Adversarially robust transfer learning
Transfer learning, in which a network is trained on one task and re-purp...
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05/19/2019
Timing and Frequency Synchronization for 1-bit Massive MU-MIMO-OFDM Downlink
We consider timing and frequency synchronization for the massive multius...
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05/15/2019
Transferable Clean-Label Poisoning Attacks on Deep Neural Nets
In this paper, we explore clean-label poisoning attacks on deep convolut...
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04/29/2019
Adversarial Training for Free!
Adversarial training, in which a network is trained on adversarial examp...
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03/09/2019
Neural-Network Optimized 1-bit Precoding for Massive MU-MIMO
Base station (BS) architectures for massive multi-user (MU) multiple-inp...
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02/22/2019
Decentralized Coordinate-Descent Data Detection and Precoding for Massive MU-MIMO
Massive multiuser (MU) multiple-input multiple-output (MIMO) promises si...
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12/05/2018
Massive MU-MIMO-OFDM Uplink with Hardware Impairments: Modeling and Analysis
We study the impact of hardware impairments at the base station (BS) of ...
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11/05/2018
Optimal Data Detection in Large MIMO
Large multiple-input multiple-output (MIMO) appears in massive multi-use...
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09/06/2018
Are adversarial examples inevitable?
A wide range of defenses have been proposed to harden neural networks ag...
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08/13/2018