A. M. Abdu, Ghada, Mohamed A. H. Abbas, and Hamid A. Ali. “Measurement of the Performance of a Cognitive Radio Spectrum Handoff Model”. University of Khartoum Engineering Journal 8, no. 1 (October 5, 2022). Accessed September 4, 2025. https://uofkej.uofk.edu/index.php/uofkej/article/view/221.