Integration of propagation modelling assets for enhancing spectrum sensing capabilities in cognitive communication networking
Farhan A. Qazi, Asutosh Das, Zhengqing Yun, Magdy F. Iskander · 2015
Robust spectrum sensing and efficient cognitive communication networking (C2N) operation in various terrain environments require that the cognitive radio be proactive and dynamic in selecting the optimal sensing parameters for the current and future locations of mobile units. In spectrum sensing, the detector performance is characterized in terms of detection probability (the rate of C2N correctly sensing a busy channel and avoiding to use it), Pdand false alarm probability (the rate at which a free channel is mistakenly identified as busy), Pfaparameters. It is worth mentioning that providing higher detection probability should take precedence over providing lower false alarm rates, because a low Pdleads to harmful interference which, in turn, adversely affects other mobile devices whereas a high Pfaresults in the C2N not using that specific channel.