, Kokil Tyagi, Er. Bhawna Sharma. “PSO Algorithm Based Resource Allocation for OFDM Cognitive Radio”. International Journal on Recent and Innovation Trends in Computing and Communication 4, no. 8 (August 31, 2016): 62–68. Accessed May 18, 2024. https://ijritcc.org/index.php/ijritcc/article/view/2479.