Topologically Extreme Waveform Designs for Rate-Adaptive High-Availability RF Links

A modern military communications waveform suitable for use in airborne networks must meet four stringent requirements: (i) robustness to harsh RF environments, (ii) adaptability to time-varying RF conditions, (ii) tolerance of long feedback delays, and (iv) backward compatibility with existing military waveforms.  The goal of this Phase I SBIR effort is the development of a waveform that provides reliable, robust high-data-rate connectivity in the face of these design challenges.  TrellisWare Technologies, Inc. (TrellisWare) proposes to bring its significant expertise in waveform design for harsh RF environments to the important challenge of rate-adaptive, high-availability RF link design.  TrellisWares existing Topologically eXtreme (TopX) waveform design tools including its Flexible Low-Density Parity-Check code family provide the necessary foundation for a scalable design that operates effectively across a large SNR dynamic range, tolerates high-frequency SNR fluctuations, and provides stability under potentially long feedback delays. BENEFIT: The most immediate commercial application of modern military waveform technology is in homeland security, first responder, and border patrol communications.  Airborne network waveform technology in particular has potential applications in commercial unmanned aerial vehicle (UAV) networks.  For example, UAVs can provide cost-effective solutions for border surveillance while the use of airborne assets can be critical to fighting wildfires.  TrellisWare therefore anticipates that the waveform technologies developed for the Air Force in this effort will therefore benefit commercial airborne network deployments as well.