Amanuel. H. QasMarrogy G. IEEE 802.16 E&M SYSTEMS BANDWIDTH RESOURCE ALLOCATION PERFORMANCE INVESTIGATION. J. eng. sustain. dev. 2019;23(4):155-169. Accessed June 24, 2026. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/246