Secure Antenna Polarization Modulation Line-of-Sight Analysis and Demonstration

Secure antenna polarization modulation, or SAPM, is a method for increasing security at the physical layer via spatial signal distortion. We derive its expected performance in additive white Gaussian noise (AWGN) channels with the goals of establishing theoretical limits and comparing them to other...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2021-07, Vol.69 (7), p.4100-4108
Main Authors: Kataria, Cara Yang, Franke, Steven J., Gao, Grace X., Bernhard, Jennifer T.
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna design
Antenna radiation patterns
Antennas
Array signal processing
Channels
Demodulation
Distortion
Dual-polarized antennas
Loaded antennas
Modulation
physical layer security
Polarization modulation
polarization-shift keying (PolSK)
Random noise
Receivers & amplifiers
secure antenna polarization modulation (SAPM)
Security
Signal distortion
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Secure antenna polarization modulation, or SAPM, is a method for increasing security at the physical layer via spatial signal distortion. We derive its expected performance in additive white Gaussian noise (AWGN) channels with the goals of establishing theoretical limits and comparing them to other techniques in a controlled environment. The theory is verified with measurements from a proof-of-concept system, and security is evaluated using information beamwidths calculated from error probability overlook angle. Results indicate that, when compared to conventional methods and keeping the hardware consistent, SAPM has a much narrower angular range of demodulation around the intended receiver-often by over 20°, depending on the receiver's error rate threshold. Different system configurations are explored in this work, including a variety of power allocations and orders of modulation, as well as the effect of antenna design. In all cases, SAPM shows the potential to significantly improve wireless security over other techniques. These findings provide the foundation and motivation for future characterization in practical channels.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2021.3060454