| | 21 | In order to enhance the security of cognitive radio (CR) systems, improvements have been made and a [http://www.orbit-lab.org/attachment/wiki/Projects/EarsSec/SingleScanner_ICASSP_main.pdf paper] has been published on using game theory to detect an intruder in a very wide band of spectrum. Assuming that the spectrum band is wider than the highest sampling rate a CR can support, the CR can only scan small parts of the band at a time. With variable SINR across the band, the gain the adversary can achieve by intruding different parts of the band can vary significantly. The gain will affect the probability that the adversary intrudes a certain part of the whole band. The game-theoretic approach described in the paper uses these probabilities across the band to determine the band the scanner will check in the attempt to detect the intruder. |
