DIRECTION MODULATION AT THE MODULATOR FOR PHYSICAL LAYER SECURITY
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Authors
Puckett, Jonathan D.
Subjects
directional modulation
Advisors
Kragh, Frank E.
Date of Issue
2019-12
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
Beam forming and directional modulation (DM) are known technologies at the antenna level. DM currently requires radio frequency (RF) phase shifting, etc., at the antenna with either multiple antennas or a phased array. We consider accomplishing DM in the modulator vice the antenna. The goal of DM is to transmit a signal in such a way as to have the signal be received undistorted at the intended receiver and hopelessly distorted at nearly any other location, thereby providing some physical layer security. In this thesis, we explore the notion of accomplishing this at baseband in the modulator instead of in the RF section, thereby achieving a simpler radio design. Currently, the complexity of directional modulation at the RF section brings a cost in either manufacturing or time. Herein, we discuss the theory and implementation of directional modulation and simulate its performance for noisy channels, both line-of-sight and non-line-of-sight.
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.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.