June, 2013 – IFT has been selected for an Air Force STTR Phase I award on Decision-Making under Uncertainty for Dynamic Spectrum Access Systems in Space Application
UncategorizedApril 17, 20170 Commentsintfusiontech
This Small Business Technology Transfer Phase I project develops collaborative spectrum awareness techniques that enable dynamic spectrum access (DSA) systems to make decisions with imperfect awareness. DSA technologies are emerging as a promising mitigator against spectrum congestion resulting from the explosive growth in commercial and Government wireless systems and services. DSA systems have demonstrated the potential for allowing increased spectrum access to greater numbers of users, assuming perfect system knowledge. Challenges still remain for widespread fielding of DSA systems, including the necessary ability to make decisions under uncertainty. The proposed effort seeks to develop, demonstrate, and implement the technical underpinnings and algorithms for DSA system operation in satellite communication environment under conditions of imperfect knowledge. It specifically proposes an integration of Bayesian game and decision-theoretic approaches to combine data from multiple collaborative sensing and static sources to increase awareness and spectrum utilization efficiency. Representation of uncertainty in the knowledge base is accomplished through probabilistic ontology and Bayesian reasoning technologies. The resulting capabilities allow DSA systems to evaluate and make trades among capacity gain, interference mitigation, and monetary cost in uncertain operating environments.
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