16 citations · 78 across the 41 of their papers we have counts for
46 papers
State-aware Real-time Tracking and Remote Reconstruction of a Markov Source
Mehrdad Salimnejad, Marios Kountouris, Nikolaos Pappas
The problem of real-time remote tracking and reconstruction of a two-state Markov process is considered here. A transmitter sends samples from an observed information source to a r…
Age of Information in Locally Adaptive Frame Slotted ALOHA
Zhiling Yue, Howard H. Yang, Meng Zhang +1
We consider a random access network consisting of source-destination pairs. Each source node generates status updates and transmits this information to its intended destination ove…
Experimental Study of Transport Layer Protocols for Wireless Networked Control Systems
Polina Kutsevol, Onur Ayan, Nikolaos Pappas +1
In Wireless Networked Control Systems (WNCSs), the feedback control loops are closed over a wireless communication network. The proliferation of WNCSs requires efficient network re…
Analysis of the Age of Information in Age-Threshold Slotted ALOHA
Howard H. Yang, Nikolaos Pappas, Tony Q. S. Quek +1
We investigate the performance of a random access network consisting of source-destination dipoles. The source nodes transmit information packets to their destinations over a share…
Semantic Filtering and Source Coding in Distributed Wireless Monitoring Systems
Pouya Agheli, Nikolaos Pappas, Marios Kountouris
The problem of goal-oriented semantic filtering and timely source coding in multiuser communication systems is considered here. We study a distributed monitoring system in which mu…
Real-time Remote Reconstruction of a Markov Source and Actuation over Wireless
Mehrdad Salimnejad, Marios Kountouris, Nikolaos Pappas
In this work, we study the problem of real-time tracking and reconstruction of an information source with the purpose of actuation. A device monitors an -state Markov process an…
Goal-oriented Policies for Cost of Actuation Error Minimization in Wireless Autonomous Systems
Emmanouil Fountoulakis, Nikolaos Pappas, Marios Kountouris
We consider the minimization of the cost of actuation error under resource constraints for real-time tracking in wireless autonomous systems. A transmitter monitors the state of a…
Age of Information Under Frame Slotted ALOHA-Based Status Updating Protocol
Zhiling Yue, Howard H. Yang, Meng Zhang +1
We propose a frame slotted ALOHA (FSA)-based protocol for a random access network where sources transmit status updates to their intended destinations. We evaluate the effect of su…
Distortion Minimization with Age of Information and Cost Constraints
Jayanth S, Nikolaos Pappas, Rajshekhar V Bhat
We consider a source monitoring a stochastic process with a transmitter to transmit timely information through a wireless ON/OFF channel to a destination. We assume that once the s…
Age of Actuation in a Wireless Power Transfer System
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
In this paper, we study a model relevant to semantics-aware goal-oriented communications. More specifically, observations from an external process are transmitted through status up…
Real-time Reconstruction of Markov Sources and Remote Actuation over Wireless Channels
Mehrdad Salimnejad, Marios Kountouris, Nikolaos Pappas
In this work, we study the real-time tracking and reconstruction of an information source with the purpose of actuation. A device monitors the state of the information source and t…
Age of Information with On-Off Service
Ashirwad Sinha, Praful D. Mankar, Nikolaos Pappas +1
This paper considers a communication system where a source sends time-sensitive information to its destination. We assume that both arrival and service processes of the messages ar…
On the Interplay Between Deadline-Constrained Traffic and the Number of Allowed Retransmissions in Random Access Networks
Nikolaos Nomikos, Themistoklis Charalambous, Yvonne-Anne Pignolet +1
In this paper, a network comprising wireless devices equipped with buffers transmitting deadline-constrained data packets over a slotted-ALOHA random-access channel is studied. Alt…
Goal-Oriented Semantic Communications for 6G Networks
Hui Zhou, Yansha Deng, Xiaonan Liu +2
Upon the arrival of emerging devices, including Extended Reality (XR) and Unmanned Aerial Vehicles (UAVs), the traditional communication framework is approaching Shannon's physical…
Robust Beamforming Design for IRS-Aided URLLC in D2D Networks
Jing Cheng, Chao Shen, Zheng Chen +1
Intelligent reflecting surface (IRS) and device-to-device (D2D) communication are two promising technologies for improving transmission reliability between transceivers in communic…
Analysis of Age of Information in Dual Updating Systems
Zhengchuan Chen, Dapeng Deng, Howard H. Yang +5
We study the average Age of Information (AoI) and peak AoI (PAoI) of a dual-queue status update system that monitors a common stochastic process. Although the double queue parallel…
Semantics-Aware Source Coding in Status Update Systems
Pouya Agheli, Nikolaos Pappas, Marios Kountouris
We consider a communication system in which the destination receives status updates from an information source that observes a physical process. The transmitter performs semantics-…
Semantics-Aware Active Fault Detection in Status Updating Systems
George Stamatakis, Nikolaos Pappas, Alexandros Fragkiadakis +1
With its growing number of deployed devices and applications, the Internet of Things (IoT) raises significant challenges for network maintenance procedures. In this work we address…
On-Demand AoI Minimization in Resource-Constrained Cache-Enabled IoT Networks with Energy Harvesting Sensors
Mohammad Hatami, Markus Leinonen, Zheng Chen +2
We consider a resource-constrained IoT network, where multiple users make on-demand requests to a cache-enabled edge node to send status updates about various random processes, eac…
RIS-aided D2D Communication Design for URLLC Packet Delivery
Jing Cheng, Chao Shen, Zheng Chen +1
In this paper, we consider a smart factory scenario where a set of actuators receive critical control signals from an access point (AP) with reliability and low latency requirement…
Performance Analysis of a MIMO System with Bursty Traffic in the presence of Energy Harvesting Jammer
Sujatha Allipuram, Parthajit Mohapatra, Nikolaos Pappas +2
This paper explores the role of multiple antennas in mitigating jamming attacks for the Rayleigh fading environment with exogenous random traffic arrival. The jammer is assumed to…
Scheduling Policies for AoI Minimization with Timely Throughput Constraints
Emmanouil Fountoulakis, Themistoklis Charalambous, Anthony Ephremides +1
In 5G and beyond communication systems, the notion of latency gets great momentum in wireless connectivity as a metric for serving real-time communications requirements. However, i…
Joint Sampling and Transmission Policies for Minimizing Cost under AoI Constraints
Emmanouil Fountoulakis, Marian Codreanu, Anthony Ephremides +1
In this work, we consider the problem of jointly minimizing the average cost of sampling and transmitting status updates by users over a wireless channel subject to average Age of…
Autonomous Maintenance in IoT Networks via AoI-driven Deep Reinforcement Learning
George Stamatakis, Nikolaos Pappas, Alexandros Fragkiadakis +1
Internet of Things (IoT) with its growing number of deployed devices and applications raises significant challenges for network maintenance procedures. In this work, we formulate a…