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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Title: FRACBOT: Design of Wireless Underground Sensor Networks for Mapping Hydraulic Fractures and Determining Reservoir Parameters in Unconventional Systems
Committee:
Dr. Ian Akyildiz, ECE, Chair , Advisor
Dr. Geoffrey Li, ECE
Dr. Ragupathy Sivakumar, ECE
Dr. Gee-Kung Chang, ECE
Dr. Mehmet Can Vuran, U of Nebraska
Abstract:
The objective of this thesis is to design full integrated MI-based FracBots (WUSNs) to enable reliable and e cient wireless communications in underground oil reservoirs to perform in-situ monitoring of oil reservoirs. This is very crucial for determining the sweet spot of oil and natural gas reserves. To this end, we have contributed in four areas as follows: rst, we develop a novel cross-layer communication framework for MI-based FracBot networks in dynamically changing underground environments. It combines a joint selection of modulation, channel coding, power control and a geographic forwarding paradigm. Second, we develop a novel magnetic induction (MI)-based localization framework which exploits the unique properties of MI-fi eld to determine the locations of the randomly deployed FracBot nodes in oil reservoirs. Third, we develop an accurate energy framework of a linear FracBot network topology that gives feasible nodes' transmission rates and FracBot network topology while always guarantees sufficient energy. Then, we design, develop and fabricate MI-based FracBot nodes. Finally, we develop a physical MI-based WUSN testbed to validate the performance of our solutions in our produced prototype of FracBot nodes.
