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Dr. Ir Muhammad hafeez CHAUDHARY

Researcher

MH.CHAUDHARY@rma.ac.be     +32-2-44-14162     Academic details

Research projects

SIC07

The main objective of this study is to develop distributed time-slot assignment methods , and methods for time synchronization for tactical radio networks to have a fully functional TDMA based MAC, and evaluate their performance by simulations and by implementing on a hardware test-bench.

ICARUS

ICARUS is a EU FP7 project on robot assisted search and rescue (SAR) operations. As one of the partners, the CISS Department contributed to the design and implementation of a wireless communications system to interconnect the unmanned platforms, command and control stations and rescuers. The key objective was to obtain a self-organizing network of mobile devices adapting to the dynamics of the environment.


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F09/05

This study mainly focusses on how to retrieve the position of the sensor nodes of a wireless sensor network and with which precision this can be done (assuming the nodes don’t have a GPS module on board). How the topology of the wireless network could be controlled in order to optimise the network for given scenarios is also investigated. The goal of this study is not only to have a theoretical approach of the problem, but also to implement the most promising methods or algorithms on a real sensor network.

Publications

  1. M. H. Chaudhary and B. Scheers. Dynamic Channel and Transmit-Power Adaptation of WiFi Network in Search and Rescue Operations. In Int. Conf. on Military Communications and Information Systems (ICMCIS), Brussels, Belgium, May 2016.
  2. M. H. Chaudhary and B. Scheers. Software-Defined Wireless Communications and Positioning Device for IoT Development. In Int. Conf. on Military Communications and Information Systems (ICMCIS), Brussels, Belgium, May 2016.
  3. M. H. Chaudhary and B. Scheers. Energy Efficient Quantization of Correlated Noisy Observations of a Sensor. In IEEE Int. Conf. on Communications (ICC), London, UK, 2015.
  4. M. H. Chaudhary and B. Scheers. DMR Implementation on SDR Platform for Control of Unmanned Devices and Cognitive Management of WiFi Network in Search and Rescue Missions. In NATO IST/RSY Symposium on Cognitive Radio & Future Networks, the Hague, the Netherlands, May 2014.
  5. M. H. Chaudhary and B. Scheers. Joint decentralized slot allocation and time synchronization in a TDMA based MAC. In Military Communications and Information Systems Conference (MCC), St.-Malo, France, October 2013.
  6. M. H. Chaudhary and B. Scheers. Progressive Decentralized TDMA Based MAC: Joint Optimization of Slot Allocation and Frame Lengths. In IEEE Military Communications Conf. (MILCOM), San Diego, CA, USA, November 2013.
  7. M. H. Chaudhary and L. Vandendorpe. Performance of Power-Constrained Estimation in Hierarchical Wireless Sensor Networks. IEEE Trans on Signal Processing, 61(3):724-739, February 2013.
  8. M. H. Chaudhary and B. Scheers. High spatial-reuse distributed slot assignment protocol for wireless ad hoc networks. In Military Communications and Information Systems Conference (MCC), Gdansk, Poland, October 2012.
  9. M. H. Chaudhary and L. Vandendorpe. Power Constrained Linear Estimation in Wireless Sensor Networks With Correlated Data and Digital Modulation. IEEE Trans on Signal Processing, 60(2):570-584, February 2012.
  10. M. H. Chaudhary and L. Vandendorpe. Power scheduling for distributed estimation in cluster-based wireless sensor networks. In IEEE Int. Conf. on Communications (ICC), Ottawa, Canada, October 2012.
  11. M. H. Chaudhary and L. Vandendorpe. Power constrained linear estimation of correlated sources in hierarchical wireless sensor networks. In IEEE 12th Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC), San Francisco, USA, June 2011.
  12. M. H. Chaudhary and L. Vandendorpe. Quantization and power allocation in wireless sensor networks with correlated data. In IEEE 12th Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 2011.
  13. M. H. Chaudhary and L. Vandendorpe. Adaptive Power Allocation in Wireless Sensor Networks with Spatially Correlated Data and Analog Modulation: Perfect and Imperfect CSI. EURASIP Journal on Wireless Communications and Networking, 2010(10.1155/2010/817961):570-584, July 2010.
  14. M. H. Chaudhary and L. Vandendorpe. Battery-Aware Power Allocation for Lifetime Maximization of Wireless Sensor Networks. In IEEE Int. Conf. on Communications (ICC), Cape Town, South Africa, May 2010.
  15. M. H. Chaudhary and L. Vandendorpe. Power-efficient estimation in sensor networks with correlated data: Perfect and imperfect CSI. In 48th Annual Allerton Conf. on Communication, Control, and Computing (Allerton), Prague, Czech Republic, September 2010.
  16. M. H. Chaudhary, A. L. Zaidi, and L. Vandendorpe. Adaptive joint quantization and power allocation in wireless sensor networks . In 42nd Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, USA, October 2008.