Research interests

• Wireless Sensor Networks (WSNs)
• Compressed Sensing
• Multispectral Sensing
• Internet of Things (IoT)
• Networks as a Sensor
• Simulation of Radio Wave Propagation
•  RaLaNS

Publications

2025

• Lennart Kaiser, Thomas Hänel, Sebastian Vogel, Nils Aschenbruck
  "A Long-Term Evaluation of Soil Moisture Sensing Based on Wireless Communication
  accepted for publication in Elsevier Computers and Electronics in Agriculture.
• Jannis Mast, Thomas Hänel, Nils Aschenbruck
  "RF Sensing via Ground Reflections - an Experimental Evaluation"
  accepted for the 12th International Symposium on Networks, Computers and Communications
  ISNCC, Paris, France, Oct. 27-30, 2025.

2024

• Thomas Hänel, Lennart Kaiser
  " Estimating Soil Moisture with COTS Hardware Using BLE’s Angle-Of-Arrival Feature"
  Proc. of the 1st IEEE LCN Special Track on Alogrithmic Solutions for Drone- and Robot-based Networks at the 49th IEEE Conference on Local Computer Networks
  ASDRoNet@LCN, Caen, France, Oct. 8-10, 2024.
• Jannis Mast, Thomas Hänel, Nils Aschenbruck
  " Single-Anchor Indoor Localization Using Multi-Frequency RSSI Fingerprinting"
  Proc. of the 49th IEEE Conference on Local Computer Networks
  LCN, Caen, France, Oct. 8-10, 2024.

2023

• Bertram Schütz, Christoph Barz, Paulo Henrique Rettore, Thomas Hänel
  " Site-Specific Radio Signal Propagation for Tactical Environments Using 3D Path Tracing"
  Proc. of the IEEE Military Communications Conference - Workshop on Coalition Federated Operations, MILCOM, Boston, MA, USA, Oct. 30 - Nov. 3, 2023.
• Nikolas Wintering, Jannis Mast, Thomas Hänel, Nils Aschenbruck
  " Trade-Off Between Compression and FEC in Image Transmission over Wifibroadcast"
  Proc. of the 48th IEEE Conference on Local Computer Networks
  LCN, Daytona Beach, Florida, USA, Oct. 2-5, 2023.
• Thomas Hänel, Manuel Reese, Maren Pöttker, Thomas Jarmer, and Nils Aschenbruck
  " Evaluating the Potential of Multispectral Sensor Networks based on Deployments in Wheat Fields"
  Proc. of the 20th IEEE International Conference on Mobile Ad-Hoc and Smart Systems
  MASS, Toronto, Canada, Sep. 25-27, 2023.
• Thomas Hänel, Clemens Hoppenau, Jannis Mast, Nils Aschenbruck
  " WIP: Two Packet Collision Model Parameter Sets"
  Proc. of the the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks
  WoWMoM, Boston, MA, USA, June 12-15, 2023.
• Jannis Mast, Thomas Hänel, Nikolas Wintering, Nils Aschenbruck
  " Evaluating Wifibroadcast for Long-Distance UAV-to-Ground Data Transmission"
  Proc. of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks
  WoWMoM, Boston, MA, USA, June 12-15, 2023.
• Daniel Otten, Thomas Hänel, Tim Römer, Nils Aschenbruck
  " Generating more Realistic Packet Loss Patterns for Wireless links using Neural Networks"
  Proc. of the 36th International Conference of the Florida Artificial Intelligence Research Society
  FLAIRS, Clearwater Beach, Florida, USA, May 17-17, 2023.

2022

• Eric Lanfer, Thomas Hänel, Roland van Rijswijk-Deij, Nils Aschenbruck
  " Improving Proximity Classification for Contact Tracing Using a Multi-Channel Approach"
  Proc. of the 47th IEEE Conference on Local Computer Networks
  LCN, Edmonton, Canada, September 26-29, 2022.
• Thomas Hänel
  " Quality-Aware Compressed Sensing for Distributed Precision Agriculture Systems"
  Dissertation, Osnabrück University, August 2022.
• Tobias Wahl, Dorit Borrmann, Michael Bleier, Andreas Nüchter, Thomas Wiemann, Thomas Hänel, Nils Aschenbruck
  " WIP: Real-world 3D models derived from mobile mapping for ray launching based propagation loss modeling"
  Proc. of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks
  WoWMoM, Belfast, Northern Ireland, June 14-17, 2022.

2021

• Thomas Hänel, Thomas Jarmer, Nils Aschenbruck
  " Learning a Transform Base for the Multi- to Hyperspectral Sensor Network with K-SVD"
  Section: Sensor Networks, Special Issue: Sensing Technology in Smart Agriculture,
  MDPI Sensors, 21(21), 7296, 2021.
• Jannis Mast, Thomas Hänel, Nils Aschenbruck
  " Enhancing Adaptive Frequency Hopping for Bluetooth Low Energy"
  Proc. of the Doctoral Track at the 46th IEEE Conference on Local Computer Networks
  LCN, Oct. 4-7, 2021.
• Thomas Hänel, Leonhard Brüggemann, Felix Loske, Nils Aschenbruck
  " Long-Term Wireless Sensor Network Deployments in Industry and Office Scenarios"
  Proc. of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks
  WoWMoM, Pisa, It, June 7-11, 2021.

2020

• Alexander Tessmer, Thomas Hänel, Nils Aschenbruck
  " On the Impact of Geographic Restrictions on Contact Metrics in Opportunistic Networks"
  Proc. of the 45th IEEE LCN Symposium on Emerging Topics in Networking
  LCN, virtually hosted in Sydney, Australia, Nov. 16-19, 2020.

2019

• Thomas Hänel, Thomas Jarmer, Nils Aschenbruck
  " Using Distributed Compressed Sensing to derive Continuous Hyperspectral Imaging from a Wireless Sensor Network"
  Elsevier Computers and Electronics in Agriculture, Vol. 166, Article 104974, Nov. 2019.

2017

• Thomas Hänel, Nils Aschenbruck
  " Accelerating Yield Mapping at Low Data Rates using Compressive Field Estimate"
  Proc. of the 42nd IEEE Conference on Local Computer Networks
  LCN, Singapore, Oct. 9-12, 2017, pp. 374-382.
• Thomas Hänel, Alexander Bothe, René Helmke, Christoph Gericke, Nils Aschenbruck
  " Adjustable Security for RFID-Equipped IoT Devices"
  Proc. of the IEEE International Conference on RFID Technology and Applications
  RFID-TA, Warsaw, Poland, Sept. 20-22, 2017, pp. 208-213.

2016

• Thomas Hänel, Florian Krampe, Christoph Gericke, Nils Aschenbruck
  " On the Potential of Data-Based Time Synchronization in Wireless Sensor Networks for Condition Monitoring"
  Proc. of the IEEE International Conference on Distributed Computing in Sensor Systems
  DCOSS, Washington, DC, USA, May 26-28, 2016, pp. 216-224.

2015

• Thomas Hänel, Matthias Schwamborn, Alexander Bothe, Nils Aschenbruck
  " On the Map Accuracy required for Network Simulations based on Ray Launching"
  Proc. of the IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks
  WoWMoM, Boston, MA, USA, June 14-17, 2015.
• Thomas Hänel, Alexander Bothe, Nils Aschenbruck
  " RaLaNS - A Ray Launching Based Propagation Loss Model for ns-3"
  Proc. of the International Conference on Networked Systems
  NetSys/KiVS, Cottbus, Germany, Mar. 9-13, 2015.

2014

• Thomas Hänel
  "Simulative Evaluation of Multi Hop Node Placement Strategies"
  Master Thesis, University of Osnabrueck, May 2014.

2011

• Thomas Hänel
  "Mobile 3D Augmented Reality mit reduziertem Markereinsatz"
  Bachelor Thesis, University of Osnabrueck, Dec. 2011.
• Nils Rosemann, Werner Brockmann, Thomas Hänel
  " Tackling uncertainties in self-optimizing systems by strategy blending"
  Proc. of the IEEE Workshop on Evolving and Adaptive Intelligent Systems
  EAIS, Paris, France, Apr. 11-15, 2011, pp. 185-192.

Teaching