LOCALIZATION AND TRACKING OF 4G COGNITIVE RADIO
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Authors
Lee, Wei San
Subjects
cognitive radio
4G network
wireless sensor network
localization error
adaptive tracking
4G network
wireless sensor network
localization error
adaptive tracking
Advisors
Su, Weilian
Ha, Tri T.
Romero, Ric
Date of Issue
2015-09
Date
September 2015
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
The 4G network provides a significant improvement in performance, but service providers are still faced with the
annual increase in usage of cell phones and wireless devices. Spectrum efficiency is the most prominent issue in
handling the high number of users. The cognitive radio is capable of changing its transmission and/or reception
parameters according to the demands of the network. In the 4G network, the cognitive radio is seen as a solution to
spectrum efficiency. With the high number of users, it also means that there is a need to effectively localize and track
the 4G cognitive radio (4G-CR) signal for various purposes such as urban environment warfare, national security,
surveillance, intelligence, and emergency rescue.
The localization errors from previous proposed methods of time-difference-of-arrival (TDOA) measurements
were analyzed in this thesis. The localization errors obtained are close to the differential-distance errors derived from
the TDOA measurement algorithms. In addition, the localization of 4G-CR requires an adaptive tracking method,
which is also discussed in this thesis.
Type
Thesis
Description
Series/Report No
Department
Electrical and Computer Engineering (ECE)
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Distribution Statement
Approved for public release; distribution is unlimited.
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