Mahdi Pirmoradian and  Olayinka Adigun and  Christos Politis,  Capacity Optimization in Cooperative Cognitive Radio Networks.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2015, vol. 102(6). 521 - 525
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10001610.