Date of Award
1-1-2017
Document Type
Masters Thesis
Degree Name
M.S.
Organizational Unit
Daniel Felix Ritchie School of Engineering and Computer Science, Computer Science
First Advisor
Mario A. Lopez, Ph.D.
Second Advisor
Paul Horn
Third Advisor
Chris Gauthier-Dickey
Fourth Advisor
Jing Li
Keywords
Barrier, Computational geometry, Coverage, Sensor networks
Abstract
The study of sensor networks begins with a model, which usually has a geometric component. This thesis focuses on networks of sensors modeled as collections of rays in the plane whose use is to detect intruders, and in particular a graph derived from this geometry, called the barrier graph of the network, which captures information about the network's coverage. Every such ray-barrier sensor network corresponds to a barrier graph, but not every graph is the barrier graph of some network.
We show that any barrier graph is not just tripartite, but perfect. We describe how to find networks which have certain designated graphs as their barrier graphs. We show that the size of a minimum vertex cover (in this context called the resilience) of a given graph can yield information about whether and how one can find a sensor network whose barrier graph is the given graph. Finally, we demonstrate that barrier graphs have certain strong structural properties, as a result of the geometry of ray-barrier networks, which represent progress towards a full characterization of barrier graphs.
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Kirk Anthony Boyer
Provenance
Received from ProQuest
File Format
application/pdf
Language
en
File Size
57 p.
Recommended Citation
Boyer, Kirk Anthony, "On Barrier Graphs of Sensor Networks" (2017). Electronic Theses and Dissertations. 1420.
https://digitalcommons.du.edu/etd/1420
Copyright date
2017
Discipline
Computer science