Integral equation methods for power control in cognitive radio
Eamonn O. Nuallain · 2011
In this lecture the proposal that cognitive radios consult with a supporting network infrastructure to enable coexistence in the signal strength domain is examined. The network server would either grant or reject transmission requests by estimating, from the cognitive radio's geo-location, the likely impact its transmission would have on incumbents and other cognitive radio devices. This decision must be based on an accurate real-time radio environment map (REM) [1] which is kept up to date by readings from cognitive radios, sensors and dynamic radio propagation prediction. By this means the imperative of coexistence in the signal strength domain of cognitive radio technology can be satisfied. It is also shown that this approach also offers a means with which to detect physical-layer attacks.