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Fault Tolerant WSN Routing

Fault Tolerant WSN Routing. Dong Han Advisor: Dr. Omprakash Gnawali Networked Systems Laboratory University of Houston http://nsl.cs.uh.edu/. Project list. Finished: Understanding Desktop Energy Footprint in an Academic Computer Lab Current: Fault Tolerant WSN Routing.

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Fault Tolerant WSN Routing

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  1. Fault Tolerant WSN Routing Dong Han Advisor: Dr. Omprakash Gnawali Networked Systems Laboratory University of Houston http://nsl.cs.uh.edu/

  2. Project list • Finished: • Understanding Desktop Energy Footprint in an Academic Computer Lab • Current: • Fault Tolerant WSN Routing

  3. Understanding Desktop Energy Footprint in an Academic Computer Lab • Wireless power meter (59.6m records) • User activity logger (220.3m records)

  4. Understanding Desktop Energy Footprint in an Academic Computer Lab • Contributions • Present a large dataset describing computing power data • Understand the relation between user activities and power draw • Identify energy waste Dong Han and Omprakash Gnawali, Understanding Desktop Energy Footprint in an Academic Computer Lab, The IEEE International Conference on Green Computing and Communications (GreenCom 2012), November 2012.

  5. Fault Tolerant WSN Routing • Wireless Sensor Network (WSN) has limited resources: • Energy; Transmission Power; Communication Range; Throughput • Made great efforts to deliver each packet • Send: …1010001110110000011110… • Received: …1010001110100000011110… • CRC check failed -> Drop

  6. Related works • Re-transmissions • End-to-end • Hop-by-hop • Forward error correction

  7. CTP Data Frame • In CTP header • up to 63 out of 64 bits (98.4375%) are fault tolerate

  8. Current Status • Disabled Hardware CRC • Accept packet contain errors Biterrors CTP Header Payload

  9. Next Steps • Identify corrupted packets • Correct and forward the corrupted packets • Determine if this technique will save energy

  10. Question ?

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