Novel Implementation of a Keyless Concurrent Codes Spread-Spectrum (CCSS) Jam-Resistant Method in GNU Radio

Authors

  • James Morrison Department of Electrical and Computer Engineering United States Air Force Academy
  • Neil Rogers Department of Electrical and Computer Engineering United States Air Force Academy
  • William Bahn Department of Computer and Cyber Sciences United States Air Force Academy

Abstract

Current omnidirectional jam-resistant technology
relies on shared secrets. This forces private networks
to exchange keys before jamming is present and leaves
public networks (like GPS or ADSB/Mode-S) unprotected.
Given the proliferation of inexpensive Software Defined
Radios (SDRs), robust jam-resistant options are more
important than ever. This project implements the “BBCâ€
codec–a keyless, concurrent codes spread-spectrum (CCSS)
strategy–in GNU Radio. Initial testing of the BBC codec
confirms theoretical performance estimates and suggests
that BBC is a viable option to preserve information
availability. Development is underway to provide an out-oftree
(OOT) module for broader use within the GNU Radio
community.

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Published

2022-09-29