Dynamic Spectrum Access with Single Transceiver Radios over Cognitive MANET Navy SBIR FY2014.2 Sol No.: Navy SBIR FY2014.2 Topic No.: N142-112 Topic Title: Dynamic Spectrum Access with Single Transceiver Radios over Cognitive MANET Proposal No.: N142-112-0786 Firm: Intelligent Automation, Inc. 15400 Calhoun Drive Suite 400 Rockville, Maryland 20855-2737 Contact: Sohraab Soltani Phone: (301) 294-4454 Web Site: www.i-a-i.com Abstract: Intelligent Automation Inc. (IAI) proposes to design, develop and implement a complete dynamic spectrum access (DSA) system operating with single transceiver (ST) radios on a cognitive mobile ad hoc network (MANET). Addressing the single-transceiver requirement along with additional restrictions on channel availability, and other sensing spectrum access capabilities (e.g., due to national policies), the proposed ST-DSA system is empowered by a distributed design (without central controller) where cognitive radios perform collective spectrum management, channel estimation, topology discovery and transmission control (time, space, frequency) to form a self-healing multi-hop cognitive MANET. ST-DSA implements a complete cognitive engine that conducts collective spectrum sensing over licensed and unlicensed spectrum to produce near real-time spectrum map of dynamic topology structures. Radios with ST-DSA capability utilize the spectrum map and apply cross-layer design to joint spectrum access and routing (with backpressure algorithm over multiple frequency bands) to carry tactical data (voice and standard IP data) over the cognitive MANET. The transmission decisions supporting spectral agility include the selection of the next-hop neighbor, the channel (frequency band), power, rate, and traffic flow over the cognitive MANET. Benefits: The proposed effort will build a complete ST-DSA system to support multiple cognitive network layers, where different algorithms for spectrum sensing, DSA, routing, and interference management can be ported to variety of SDRs, including tactical and commercial radios, supporting single transceiver radio systems. The proposed effort is directly beneficial to military cognitive network efforts with respect to spectrum management, interference management, throughput maximization, delay, and power minimization. Our primary goal is transition the developed ST-DSA system to Exchange of Actionable Information at the Tactical Edge (EAITE) program. This effort also applies to commercial organizations and homeland security for robust and high rate data communication in licensed and unlicensed spectrum use, as well as network operability over dynamic spectrum environments (e.g., due to national policies). We expect that the market for military applications as well commercial demand is quite large and will grow continuously Return