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Hacker Detection: Jamming in a Wireless Sensor Network. John Davis Mansfield Legacy High School johndavis@misdmail.org. Nabila Rahman University of Texas, Arlington nabila.rahman@mavs.uta.edu. Eric Manuel Duncanville High School emanuel@duncanvilleisd.org. Matthew Wright

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  1. Hacker Detection: Jamming in a Wireless Sensor Network • John Davis • Mansfield Legacy High School • johndavis@misdmail.org • Nabila Rahman • University of Texas, Arlington • nabila.rahman@mavs.uta.edu • Eric Manuel • Duncanville High School • emanuel@duncanvilleisd.org • Matthew Wright • University of Texas, Arlington • mwright@cse.uta.edu Background Wireless Sensor Networks (WSN) can be deployed for monitoring secure areas. Each sensor (or “mote”) communicates with nearby motes. A jammer attempts to interrupt this communication by flooding the motes with information, preventing meaningful communication between the motes. The RET Program The Research Experience for Teachers is a two-year experience for High School Science, Math and Technology teachers, funded by a grant from the National Science Foundation. Research Adaptation • Research areas include: • Identifying neighbors. • Jamming detection. • Reporting jamming. • Determining the jammed areas. • Mapping the jammed areas. • Performance analysis. • Students will: • Calculate wavelength of EM waves. • Simulate a wireless network of cell phones (thought experiment). • Develop a method for identifying jamming and location of jammer. • Use laser pointers and diffraction gratings to demonstrate EM interference Simulation Results • Calculations and Analysis are extrapolated through a program for different sized hypothetical networks. Application Extension Students are asked to write a short essay on the ethical and practical effects of jamming technology such as cell phones. Students also perform a traditional lab on electromagnetic interference patterns with laser pointers and diffraction gratings. • Students: • Calculate the wavelength of 2.4GHz EM radiation (used in motes and cellphones). • Simulate a network where they are the motes and text messages are the means of communication. • Describe how they would detect a jammer, and locate that jammer. Lab Experiment Functioning Network Jammed Network • Department of Computer Science and Engineering • The University of Texas at Arlington In this experiment, jammed motes are indicated by a blue light.

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