N.Vaijayanthi. “Comparative Evaluation of Spectral Efficiency in Multicarrier Modulation Techniques”. International Journal on Recent and Innovation Trends in Computing and Communication 7, no. 12 (December 31, 2019): 28–33. Accessed September 13, 2025. https://mail.ijritcc.org/index.php/ijritcc/article/view/11537.