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The authors present a software solution for over-the-air reconfiguration of remote software radio terminals using the free GNU Radio toolkit, facilitating the development of Cognitive Radio applications. The modular architecture allows for separating the cognitive engine from the signal processing algorithms, thus allowing fast implementation, verification and easier testing. Cognitive Radio (CR) is a broad term and entails a variety of concepts and technologies. In this paper, they attempt to tackle one of the problems often neglected in this context: the remote reconfiguration of radio terminals (over-the-air reconfiguration).
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