Mohamad, H. A., A. Idris, and K. Dimyati. “MIMO-OFDMA Subcarrier Mapping Improvement by Using Quarter ICI-SC With STFBC Technique”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 1-4, Mar. 2017, pp. 33-36, https://jtec.utem.edu.my/jtec/article/view/1775.