86 citations · 222 across the 33 of their papers we have counts for
35 papers
Predictive Closed-Loop Service Automation in O-RAN based Network Slicing
Joseph Thaliath, Solmaz Niknam, Sukhdeep Singh +7
Network slicing provides introduces customized and agile network deployment for managing different service types for various verticals under the same infrastructure. To cater to th…
Optimizing Number, Placement, and Backhaul Connectivity of Multi-UAV Networks
Javad Sabzehali, Vijay K. Shah, Qiang Fan +3
Multi-Unmanned Aerial Vehicle (UAV) Networks is a promising solution to providing wireless coverage to ground users in challenging rural areas (such as Internet of Things (IoT) dev…
AoI-minimizing Scheduling in UAV-relayed IoT Networks
Biplav Choudhury, Vijay K. Shah, Aidin Ferdowsi +2
Due to flexibility, autonomy and low operational cost, unmanned aerial vehicles (UAVs), as fixed aerial base stations, are increasingly being used as \textit{relays} to collect tim…
3D Placement and Orientation of mmWave-based UAVs for Guaranteed LoS Coverage
Javad Sabzehali, Vijay K. Shah, Harpreet S. Dhillon +1
Unmanned aerial vehicles (UAVs), as aerial base stations, are a promising solution for providing wireless communications, thanks to their high flexibility and autonomy. Moreover, e…
Deep Learning for Fast and Reliable Initial Access in AI-Driven 6G mmWave Networks
Tarun S. Cousik, Vijay K. Shah, Tugba Erpek +2
We present DeepIA, a deep neural network (DNN) framework for enabling fast and reliable initial access for AI-driven beyond 5G and 6G millimeter (mmWave) networks. DeepIA reduces t…
Joint Age of Information and Self Risk Assessment for Safer 802.11p based V2V Networks
Biplav Choudhury, Vijay K. Shah, Avik Dayal +1
Emerging 802.11p vehicle-to-vehicle (V2V) networks rely on periodic Basic Safety Messages (BSMs) to disseminate time-sensitive safety-critical information, such as vehicle position…
Survey of Spectrum Regulation for Intelligent Transportation Systems
Junsung Choi, Vuk Marojevic, Carl B. Dietrich +2
As 5G communication technology develops, vehicular communications that require high reliability, low latency, and massive connectivity are drawing increasing interest from those in…
Underlay Radar-Massive MIMO Spectrum Sharing: Modeling Fundamentals and Performance Analysis
Raghunandan M. Rao, Harpreet S. Dhillon, Vuk Marojevic +1
In this work, we study underlay radar-massive MIMO cellular coexistence in LoS/near-LoS channels, where both systems have 3D beamforming capabilities. Using mathematical tools from…
Fast Initial Access with Deep Learning for Beam Prediction in 5G mmWave Networks
Tarun S. Cousik, Vijay K. Shah, Jeffrey H. Reed +2
This paper presents DeepIA, a deep learning solution for faster and more accurate initial access (IA) in 5G millimeter wave (mmWave) networks when compared to conventional IA. By u…
Probability of Pilot Interference in Pulsed Radar-Cellular Coexistence: Fundamental Insights on Demodulation and Limited CSI Feedback
Raghunandan M. Rao, Vuk Marojevic, Jeffrey H. Reed
This paper considers an underlay pulsed radar-cellular spectrum sharing scenario, where the cellular system uses pilot-aided demodulation, statistical channel state information (S-…
Analysis of Worst-Case Interference in Underlay Radar-Massive MIMO Spectrum Sharing Scenarios
Raghunandan M. Rao, Harpeet S. Dhillon, Vuk Marojevic +1
In this paper, we consider an underlay radar-massive MIMO spectrum sharing scenario in which massive MIMO base stations (BSs) are allowed to operate outside a circular exclusion zo…
Analysis of Non-Pilot Interference on Link Adaptation and Latency in Cellular Networks
Raghunandan M. Rao, Vuk Marojevic, Jeffrey H. Reed
Modern wireless systems such as the Long-Term Evolution (LTE) and 5G New Radio (5G NR) use pilot-aided SINR estimates to adapt the transmission mode and the modulation and coding s…
Artificial Intelligence-Defined 5G Radio Access Networks
Miao Yao, Munawwar Sohul, Vuk Marojevic +1
Massive multiple-input multiple-output antenna systems, millimeter wave communications, and ultra-dense networks have been widely perceived as the three key enablers that facilitat…
Demonstration Paper: Wirelessly Sensing Medication Administration: Cyber-Physical Event Detection and Notification Utilizing Multi-Element Chipless RFID
Xiaofu Ma, Thaddeus Czauski, Taeyoung Yang +1
Medication administration is one pathway by which Adverse Drug Events (ADE) can occur. While Electronic Medical Administration Record (eMAR) systems help reduce the number of ADEs,…
Prototypes of Using Directional Antenna for Railroad Crossing Safety Applications
Xiaofu Ma, Sayantan Guha, Junsung Choi +5
In this demonstration proposal, we present a prototype of a rapidly deployable and cost-effective railroad crossing early warning system integrated with the railway system. Specifi…
Analysis of directional antenna for railroad crossing safety applications
Xiaofu Ma, Sayantan Guha, Junsung Choi +5
A rapidly deployable and cost-effective railroad crossing early warning system integrated with the railway system is attractive due to its protection of the unmanned grade crossing…
Hypergraph matching for MU-MIMO user grouping in wireless LANs
Xiaofu Ma, Qinghai Gao, Vuk Marojevic +1
This paper investigates the user grouping problem of downlink wireless local area networks (WLANs) with multi-user MIMO (MU-MIMO). Particularly, we focus on the problem of whether…
Dynamic Sounding for Multi-User MIMO in Wireless LANs
Xiaofu Ma, Qinghai Gao, Ji Wang +2
Consumer electronic (CE) devices increasingly rely on wireless local area networks (WLANs). Next generation WLANs will continue to exploit multiple antenna systems to satisfy the g…
Regulatory Options and Technical Challenges for the 5.9 GHz Spectrum: Survey and Analysis
Junsung Choi, Vuk Marojevic, Mina Labib +5
In 1999, the Federal Communications Commission (FCC) allocated 75 MHz in the 5.9 GHz ITS Band (5850-5925 MHz) for use by Dedicated Short Range Communications (DSRC) to facilitate i…
Measuring Hardware Impairments with Software-Defined Radios
Vuk Marojevic, Aditya V. Padaki, Raghunandan M. Rao +1
This Innovative Practice Full Paper introduces a novel tool for educating electrical engineering students about hardware impairments in wireless communications. A radio frequency (…
Semidefinite Relaxation-Based PAPR-Aware Precoding for Massive MIMO-OFDM Systems
Miao Yao, Matt Carrick, Munawwar M. Sohul +3
Massive MIMO requires a large number of antennas and the same amount of power amplifiers (PAs), one per antenna. As opposed to 4G base stations, which could afford highly linear PA…
Rate-Maximizing OFDM Pilot Patterns for UAV Communications in Nonstationary A2G Channels
Raghunandan M. Rao, Vuk Marojevic, Jeffrey H. Reed
In this paper, we propose and evaluate rate-maximizing pilot configurations for Unmanned Aerial Vehicle (UAV) communications employing OFDM waveforms. OFDM relies on pilot symbols…
5G NR Jamming, Spoofing, and Sniffing: Threat Assessment and Mitigation
Marc Lichtman, Raghunandan M. Rao, Vuk Marojevic +2
In December 2017, the Third Generation Partnership Project (3GPP) released the first set of specifications for 5G New Radio (NR), which is currently the most widely accepted 5G cel…
Deep Predictive Coding Neural Network for RF Anomaly Detection in Wireless Networks
Nistha Tandiya, Ahmad Jauhar, Vuk Marojevic +1
Intrusion detection has become one of the most critical tasks in a wireless network to prevent service outages that can take long to fix. The sheer variety of anomalous events nece…