Single-Transceiver Dynamic Spectrum Access (ST-DSA) Navy SBIR FY2014.2 Sol No.: Navy SBIR FY2014.2 Topic No.: N142-112 Topic Title: Single-Transceiver Dynamic Spectrum Access (ST-DSA) Proposal No.: N142-112-0040 Firm: TrellisWare Technologies, Inc. 16516 Via Esprillo Suite 300 San Diego, California 92127-1708 Contact: Cenk Kose Phone: (858) 753-1632 Web Site: www.trellisware.com Abstract: Dynamic spectrum access (DSA) can improve the performance and spectral efficiency of the Navy's networks. Unfortunately, most DSA approaches make assumptions that are incompatible with existing Navy radios - e.g., multiple transceivers or a waveform with dedicated time slots is required for spectrum sensing. It is thus perhaps not surprising that DSA hasn't been fielded by the Navy, despite its great promise. In this program, TrellisWare will design, develop, and demonstrate a DSA system that can be transitioned into a Navy tactical radio acquisition program. Our approach has two components: Simultaneous Transmit and Spectrum Sensing (STASS) and Pragmatic Distributed DSA (PD-DSA). The STASS component continuously senses all bands that are accessible by the tactical radio - even when the radio is transmitting at 20W. The PD-DSA will imbue the Soldier Radio Waveform (SRW) with multiple flavors of frequency agility. We focus on SRW because it is the most likely MANET waveform to be fielded by the Navy in the near term. Benefits: The Simultaneous Transmit and Spectrum Sensing (STASS) capability that will developed in this program could be commercialized as a miniaturized, ruggedized module for STASS or Simultaneous Transmit and Receive. This module could be used to provide a full-duplex transmission capability to many public safety and security radio systems. Moreover, it could be used to enhance TrellisWare's current line of MANET radio products. Return