Zemzemi, I., and N. Boulejfen. “Behavioral Modeling and Digital Predistortion of 2x2 MIMO Wireless Transmitters With Enhanced Multivariable Polynomials”. Engineering, Technology & Applied Science Research 9, no. 5 (October 9, 2019): 4706–4711. Accessed January 25, 2022. https://www.etasr.com/index.php/ETASR/article/view/2974.