The objective of this project is to develop and validate middleware technologies that support the design of fault-tolerant networked embedded sensor systems. Health management and fault tolerant control are vital tasks of embedded systems that are characterized by the tight coupling between the physical and computational worlds. These are systems that involve heterogeneous software and hardware components, multiple modes of operation in uncertain environments, and distribution across multiple agents communicating over extended networks. Predicting real-time behavior in such dynamic environments is computationally intractable. Assurance of services and safe system operation requires a new generation of fault-tolerant technologies that provide mechanisms for self-monitoring and self-healing. The associated tasks must comprise of detecting internal and external changes to the system, reflecting on the occurrences, and adapting to the new environment.

Personnel

• Sachin Kogekar, MS in Computer Science, August 2004.

Publications

• Sachin Kogekar, Sandeep Neema, and Xenofon Koutsoukos, "Dynamic Software Reconfiguration in Sensor Networks". International Conference on Sensor Networks- SENET 2005. August 2005.
  
  
• S. Kogekar. Dynamic Software Reconfiguration in Sensor Networks. MS Thesis. Department of Electrical Engineering and Computer Science, Vanderbilt University, August 2004.
  
  
• Sachin Kogekar, Sandeep Neema, Brandon Eames, Xenofon Koutsoukos, Akos Ledeczi, and Miklos Maroti, "Constraint-Guided Dynamic Reconfiguration in Sensor Networks". Information Processing in Sensor Networks 2004 (IPSN 2004), Berkeley, CA, April 2004.
  

Updated list of publications and preprints can be found at http://www.vuse.vanderbilt.edu/~koutsoxd/www/publications.html

Experimental Test-Bed

Ad hoc sensor network consisting of 12 sensor nodes, 8 stationary and 4 mobile. The stationary nodes are eight OpenBrick-E wireless sensor devices running RedHat Linux. Each OpenBrick-E includes an 802.11b wireless LAN with a standard 2 dbi antenna. Each node is equipped with a Logitech QuickCam Pro 4000 webcam. The four mobile nodes are Pioneer 3-DX platforms equipped with a Linux PC client, 802.11b wireless LAN, laser mapping and navigation systems, active pan-tilt-zoom color cameras, and a 6 degree-of-freedom arm.

For additional information or if you are interested for graduate student research positions, contact me at: Xenofon.Koutsoukos@vanderbilt.edu