1.4k citations · 5.3k across the 137 of their papers we have counts for
162 papers
Analysis of Integrated Communication and Sensing in Cylindrical Aerial Corridors
Harris K. Armeniakos, Petros S. Bithas, Athanasios G. Kanatas +1
In unmanned aerial vehicle (UAV) networks, integrated communication and sensing (ISAC) is emerging as a key enabler to support extended and continuous communication and sensing cap…
Joint Communication and Sensing in Aerial Corridors: A Novel Stochastic Geometry Framework
Harris K. Armeniakos, Petros S. Bithas, Athanasios G. Kanatas +1
In unmanned aerial vehicle (UAVs) networks, joint communication and sensing (JCAS) is emerging as a key enabler to support extended and continuous communication and sensing capabil…
Fourier Preconditioning for Neural Feature Learning
Preston Pitzer, Anish Pradhan, Harpreet S. Dhillon
Mutual information (MI)-inspired feature learning techniques are capable of generating low-dimensional embeddings that retain nonlinear dependence structures, but direct estimation…
A New Location Estimator for Mixed LOS & NLOS scenarios
Gaurav Duggal, Richard M. Buehrer, Harpreet S. Dhillon +1
Time-of-arrival (TOA)-based localization in mixed line-of-sight (LOS) and non-line-of-sight (NLOS) environments is challenging because conventional Euclidean range models do not ca…
Optimal Anchor Placement for Wireless Localization in Mixed LOS and NLOS Scenarios
Gaurav Duggal, R. Michael Buehrer, Harpreet S. Dhillon +1
This paper develops a general optimal experimental design framework for anchor placement in localization and related estimation problems whose Fisher information matrix (FIM) can b…
Speech-Synchronized Whiteboard Generation via VLM-Driven Structured Drawing Representations
Suraj Prasad, Pinak Mahapatra
Creating whiteboard-style educational videos demands precise coordination between freehand illustrations and spoken narration, yet no existing method addresses this multimodal sync…
LEO-based Carrier-Phase Positioning for 6G: Design Insights and Comparison with GNSS
Harish K. Dureppagari, Harikumar Krishnamurthy, Chiranjib Saha +4
The integration of non-terrestrial networks (NTN) into 5G new radio (NR) enables a new class of positioning capabilities based on cellular signals transmitted by Low-Earth Orbit (L…
On the Analysis of Platooned Vehicular Networks on Highways
Kaushlendra Pandey, Harpreet S. Dhillon, Abhishek K. Gupta
Vehicular platooning refers to coordinated and close movement of vehicular users (VUs) traveling together along a common route segment, offering strategic benefits such as reduced…
Mutual Information-Driven Visualization and Clustering for Core KPI Selection in O-RAN Testing
Anish Pradhan, Lingjia Liu, Harpreet S. Dhillon
O-RAN testing is becoming increasingly difficult with the exponentially growing number of performance measurements as the system grows more complex, with additional units, interfac…
Björck Sequences: Extension to Arbitrary Lengths, Correlation Analysis, and Applications to Wireless Systems
Harish K. Dureppagari, Chiranjib Saha, R. Michael Buehrer +1
In this paper, we propose a sequence construction framework that extends prime-length Björck sequences, a class of Constant Amplitude Zero Autocorrelation (CAZAC) sequences, to arb…
Indoor Positioning for Public Safety: Role of UAVs, LEOs, and Propagation-Aware Techniques
Gaurav Duggal, Harish K. Dureppagari, Harpreet S. Dhillon +2
Effective indoor positioning is critical for public safety, enabling first responders to locate at-risk individuals accurately during emergency scenarios. However, traditional Glob…
Determinantal Learning for Subset Selection in Wireless Networks
Xiangliu Tu, Chiranjib Saha, Harpreet S. Dhillon
Subset selection is central to many wireless communication problems, including link scheduling, power allocation, and spectrum management. However, these problems are often NP-comp…
Impact of Frequency on Diffraction-Aided Wireless Positioning
Gaurav Duggal, Anand M. Kumar, R. Michael Buehrer +3
This paper tackles the challenge of accurate positioning in Non-Line-of-Sight (NLoS) environments, with a focus on indoor public safety scenarios where NLoS bias severely impacts l…
Deterministic and Statistical Analysis of the DoF of Continuous Linear Arrays in the Near Field
Athanasios G. Kanatas, Harris K. Armeniakos, Harpreet S. Dhillon +1
This paper examines the number of communication modes, that is, the degrees of freedom (DoF) in a wireless line-of-sight channel comprising a small continuous linear intelligent an…
Geolocation with Large LEO Constellations: Insights from Fisher Information
Don-Roberts Emenonye, Harpreet S. Dhillon, R. Michael Buehrer
Interest in the use of the low earth orbit (LEO) in space - from to - has skyrocketed; this is evident by the fact that National Aeronautics and…
Impact of Model Mismatch on DOA Estimation with MUSIC: Near-Field and Far-Field
Don-Roberts Emenonye, Harpreet S. Dhillon, R. Michael Buehrer
There has been substantial work on developing variants of the multiple signal classification (MUSIC) algorithms that take advantage of the information present in the near-field pro…
A New Statistical Approach to the Performance Analysis of Vision-based Localization
Haozhou Hu, Harpreet S. Dhillon, R. Michael Buehrer
Many modern wireless devices with accurate positioning needs also have access to vision sensors, such as a camera, radar, and Light Detection and Ranging (LiDAR). In scenarios wher…
LEO-based Positioning: Foundations, Signal Design, and Receiver Enhancements for 6G NTN
Harish K. Dureppagari, Chiranjib Saha, Harikumar Krishnamurthy +4
The integration of non-terrestrial networks (NTN) into 5G new radio (NR) has opened up the possibility of developing a new positioning infrastructure using NR signals from Low-Eart…
Foundations of Vision-Based Localization: A New Approach to Localizability Analysis Using Stochastic Geometry
Haozhou Hu, Harpreet S. Dhillon, R. Michael Buehrer
Despite significant algorithmic advances in vision-based positioning, a comprehensive probabilistic framework to study its performance has remained unexplored. The main objective o…
Fundamentals of LEO Based Localization
Don-Roberts Emenonye, Harpreet S. Dhillon, R. Michael Buehrer
In this paper, we derive the fundamental limits of low earth orbit (LEO) enabled localization by analyzing the available information in signals from multiple LEOs during different…
Diffraction Aided Wireless Positioning
Gaurav Duggal, R. Michael Buehrer, Harpreet S. Dhillon +1
Wireless positioning in Non-Line-of-Sight (NLoS) scenarios presents significant challenges due to multipath effects that lead to biased measurements and reduced positioning accurac…
Joint 9D Receiver Localization and Ephemeris Correction with LEO and G Base Stations
Don-Roberts Emenonye, Wasif J. Hussain, Harpreet S. Dhillon +1
This paper leverages Fisher information to examine the interaction between low-Earth orbit (LEO) satellites and 5G base stations (BSs) in enabling 9D receiver localization and refi…
3D Positioning using a New Diffraction Path Model
Gaurav Duggal, R. Michael Buehrer, Harpreet S. Dhillon +1
Enhancing 3D and Z-axis positioning accuracy is crucial for effective rescue in indoor emergencies, ensuring safety for emergency responders and at-risk individuals. Additionally,…
Peak Age of Information under Tandem of Queues
Ashirwad Sinha, Shubhransh Singhvi, Praful D. Mankar +1
This paper considers a communication system where a source sends time-sensitive information to its destination via queues in tandem. We assume that the arrival process as well as t…