|Student Name:||2d Lt Ryan McLean|
|Thesis:||Uncoordinated Coexistence in Frequency Hopping Cognitive Radio Networks|
|Location:||EN Conference Room (B640 R247)|
|Date & Time:||02/14/2013 at 0900|
|Abstract:|| The radio frequency (RF) spectrum is a limited physical resource. Spectrum allotment disputes stem from this scarcity as many radio devices are confined to a fixed frequency or set of frequencies. One alternative is to incorporate cognition with a reconfigurable radio platform, therefore enabling the radio to adapt to dynamic RF spectrum environments. In this way, the radio is able to actively observe the RF spectrum, orient itself to the current RF environment, decide on a mode of operation, and act accordingly, thereby sharing the spectrum and operating in a more flexible manner. This research presents a novel framework for incorporating several techniques for the purpose of adapting radio operation to an existing RF spectrum environment. Specifically, five contributions are made to the field of cognitive radio: (1) the framework for a new hybrid hardware/software cognitive radio middleware architecture, (2) a framework for testing and demonstrating clustering algorithms in the context of cognitive radio networks, (3) a new RF spectrum map representation and merging technique, (4) a new method for generating a random, key-based adaptive frequency-hopping waveform, and (5) initial integration testing toward implementing the proposed system on a field-programmable gate array (FPGA).