Enabling Cognitive Radio Experimental Research
Joerg Lotze did his Ph.D. Viva Voce yesterday. All went well and he will be graduating within the next few months. Joerg has been working on a method for designing cognitive radios that is platform independent.
He devised a high level model that can take reconfiguration into account and that allows the designer to think through the radio without worrying about the platform. I will put a link to the thesis on the site once the final corrections are finished.
The diagram on the left is taken from Joerg’s thesis and captures the model that he developed. The modes associated with any one subsystem (radio component) represent the different configuration options.
Joerg also redesigned our software radio platform, Iris, to operate on an FPGA platform. In fact now the version of Iris we use on a GPP and on an FPGA platform is the same. In the case of the latter some of the radio components (subsystems) can be hardware components – i.e. be implemented on the FPGA fabric. However from the perspective of the Iris user the components of the radio, whether hardware or software, look the same as all hardware components are set in a software wrapper.