86 citations · 222 across the 33 of their papers we have counts for
13 papers · 1 filter
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…
A Digital Predistortion Scheme Exploiting Degrees-of-Freedom for Massive MIMO Systems
Miao Yao, Munawwar Sohul, Randall Nealy +2
The primary source of nonlinear distortion in wireless transmitters is the power amplifier (PA). Conventional digital predistortion (DPD) schemes use high-order polynomials to accu…