Danilo López and  Edwin Rivas and  Leyla López,  An Algorithm for Determining the Arrival Behavior of a Secondary User to a Base Station in Cognitive Radio Networks .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2016, vol. 120(12). 2079 - 2084
    [viewed 26 October 2021]. Available from: https://publications.waset.org/pdf/10006010.