Daniel, J. Andrew, and J. Mangaiyarkarasi. “Performance Analysis of OFDM Based Cognitive Radio Network under Channel Uncertainty”. The International Journal of Science & Technoledge 2, no. 3 (March 31, 2014). Accessed July 17, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/138593.