E. Abdul Fatah, S., and D. Sami A. Mawjoud. “Capacity Analysis and Simulation for Mobile WiMAX System in Distributed Subcarrier Permutation Modes in a Proposed Channel”. Al-Rafidain Engineering Journal (AREJ), vol. 21, no. 6, Dec. 2013, pp. 1-18, doi:10.33899/rengj.2013.82372.