Examination Committee:

Abstract — This paper presents experimental results of angle of arrival (AOA) estimation for sensor node localization of wireless networks via received signal strength measurements from directional antennas. Field experiments were conduct with a Hex Dipole Parasitic Antenna (HDPA) board using an IEEE 802.11 2.4 GHz radio. A number of beam patterns of the HDPA are measured and stored as data sets organized by time and distance. The AOA estimates had large error for a single training data set; however when multiple data sets taken over longer time periods were averaged together the AOA error decreased. Intelligently choosing directional beam patterns is shown to improve th