Fast, Flexible, Adaptive Channel Coding with Near-Shannon-Limit Performance

The Flexible Adaptive Shannon Transmission for Wideband Networking Waveform (FAST-WNW) system provides near Shannon limit modulation & coding waveforms that automatically adapt to the link conditions while maintaining compatibility with JTRS-WNW channelizations. These techniques can provide up to a factor of 24 increase in data throughput with 5 to 10 dB less of power as compared to JTRS-WNW. This provides a significant increase in network flexibility as compared to the Joint Tactical Radio System (JTRS) WNW Orthogonal Frequency Division Multiplexing (OFDM) and Anti-Jam (AJ) techniques. In this Phase II SBIR, Efficient Channel Coding (ECC), Xenotran, and 0dB Coding will demonstrate the flexible, near-Shannon limit Forward Error Correction (FEC) techniques developed by each company in separate Phase I efforts. This will be achieved through a demonstration implementation in Field Programmable Gate Array (FPGA) technology. Additionally, the top-level design for the overall FAST-WNW system will be developed. A Phase II Option is proposed that would further the demonstration by integrating the FEC into an adaptive modem system, allowing the demonstration of the FAST-WNW concept in a system environment.