12 citations · 42 across the 18 of their papers we have counts for
20 papers
Machine Learning-based Positioning using Multivariate Time Series Classification for Factory Environments
Nisal Hemadasa Manikku Badu, Marcus Venzke, Volker Turau +1
Indoor Positioning Systems (IPS) gained importance in many industrial applications. State-of-the-art solutions heavily rely on external infrastructures and are subject to potential…
Move Complexity of a Self-Stabilizing Algorithm for Maximal Independent Sets
Volker Turau
is a self-stabilizing algorithm that computes a maximal independent set in a finite graph with approximation ratio . In this note we show that und…
Fixed Points and 2-Cycles of Synchronous Dynamic Coloring Processes on Trees
Volker Turau
This paper considers synchronous discrete-time dynamical systems on graphs based on the threshold model. It is well known that after a finite number of rounds these systems either…
Are Group Acknowledgements Worth Anything in IEEE 802.15.4 DSME: A Comparative Analysis
Florian Meyer, Phil Malessa, Jan Niklas Diercks +1
For data collection scenarios in the Industrial Internet of Things, wireless communication provides a cost-effective and easy-to-deploy alternative to wired networks. The main focu…
QMA: A Resource-efficient, Q-Learning-based Multiple Access Scheme for the IIoT
Florian Meyer, Volker Turau
Contention-based wireless channel access methods like CSMA and ALOHA paved the way for the rise of the Internet of Things in industrial applications (IIoT). However, to cope with i…
Artificial Neural Networks for Sensor Data Classification on Small Embedded Systems
Marcus Venzke, Daniel Klisch, Philipp Kubik +3
In this paper we investigate the usage of machine learning for interpreting measured sensor values in sensor modules. In particular we analyze the potential of artificial neural ne…
Synchronous Concurrent Broadcasts for Intermittent Channels with Bounded Capacities
Volker Turau
In this work we extend the recently proposed synchronous broadcast algorithm amnesiac flooding to the case of intermittent communication channels. In amnesiac flooding a node forwa…
New CAP Reduction Mechanisms for IEEE 802.15.4 DSME to Support Fluctuating Traffic in IoT Systems
Florian Meyer, Ivonne Mantilla-González, Volker Turau
In 2015, the IEEE 802.15.4 standard was expanded by the Deterministic and Synchronous Multi-Channel Extension (DSME) to increase reliability, scalability and energy-efficiency in i…
Analysis of Amnesiac Flooding
Volker Turau
The broadcast operation in distributed systems is used to spread information located at some nodes to all other nodes. This operation is often realized by flooding, where the sourc…
[1,2]-Domination in Generalized Petersen Graphs
Fairouz Beggas, Volker Turau, Mohammed Haddad +1
A vertex subset of a graph is a -dominating set if each vertex of is adjacent to either one or two vertices in . The minimum cardinality of…
Concurrent Distributed Serving with Mobile Servers
Abdolhamid Ghodselahi, Fabian Kuhn, Volker Turau
This paper introduces a new resource allocation problem in distributed computing called distributed serving with mobile servers (DSMS). In DSMS, there are identical mobile serv…
Reliable Wireless Multi-Hop Networks with Decentralized Slot Management: An Analysis of IEEE 802.15.4 DSME
Florian Kauer, Maximilian Köstler, Volker Turau
Wireless communication is a key element in the realization of the Industrial Internet of Things for flexible and cost-efficient monitoring and control of industrial processes. Wire…
An Analytical Model for Wireless Mesh Networks with Collision-Free TDMA and Finite Queues
Florian Kauer, Volker Turau
Wireless mesh networks are a promising technology for connecting sensors and actuators with high flexibility and low investment costs. In industrial applications, however, reliabil…
A Distributed Algorithm for Finding Hamiltonian Cycles in Random Graphs in O(log n) Time
Volker Turau
It is known for some time that a random graph contains w.h.p. a Hamiltonian cycle if is larger than the critical value . The…
Constructing Customized Multi-Hop Topologies in Dense Wireless Network Testbeds
Florian Kauer, Volker Turau
Testbeds are a key element in the evaluation of wireless multi-hop networks. In order to relieve researchers from the hassle of deploying their own testbeds, remotely controllable…
PSVR - Self-stabilizing Publish/Subscribe Communication for Ad-hoc Networks
Gerry Siegemund, Volker Turau
This paper presents the novel routing algorithm PSVR for pub/sub systems in ad-hoc networks. Its focus is on scenarios where communications links are unstable and nodes frequently…
Analytical Model for IEEE 802.15.4 Multi-Hop Networks with Improved Handling of Acknowledgements and Retransmissions
Florian Meier, Volker Turau
The IEEE 802.15.4 standard allows for the deployment of cost-effective and energy-efficient multi-hop networks. This document features an in-depth presentation of an analytical mod…
Analyzing the Fault-Containment Time of Self-Stabilizing Algorithms - A Case Study for Graph Coloring
Volker Turau
The paper presents techniques to derive upper bounds for the mean time to recover from a single fault for self-stabilizing algorithms in the message passing model. For a new Delta+…
Opacity of Memory Management in Software Transactional Memory
Holger Machens, Volker Turau
Opacity of Transactional Memory is proposed to be established by incremental validation. Quiescence in terms of epoch-based memory reclamation is applied to deal with doomed transa…
Fluctuation in Peer-to-Peer Networks: Mitigating Its Effect on DHT Performance
Dietrich Fahrenholtz, Volker Turau
Due to the transient nature of peers, any Peer-to-Peer network is in peril to falling apart if peers do not receive routing table updates periodically. To this end, maintenance, wh…