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Policy-driven Dynamic Spectrum Access (DSA) systems are emerging as one of the key technologies to enable the Department of Defense (DoD) to meet its increasing requirements for access to the electromagnetic spectrum. A key open issue surrounding deployment and continuing development of DSA systems concerns (1) the need to test and evaluate the performance of DSA in avoiding interference to itself...
The assumption is that a DSA radio communications system will offer improved performance versus a fixed frequency system when subjected to spectrum congestion or interference conditions. This study looks to identify the performance impact of the DSA radio network convergence or rendezvous time. The number of DSA radio nodes and spectrum sensed 100 kHz channels will be varied to investigate this.
This paper describes a preliminary proof of concept of the Government reference architecture (GRA) that integrates a commercial-off-the-shelf (COTS) universal software radio peripheral (USRP) platform developed for the GNU Radio project, GNU Radio source code for the USRP, and the Virginia Tech based open source software communications architecture implementation::embedded (OSSIE) environment.
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