Suresh Babu, Kolluru, and Srikanth Vemuru. “A Low-Cost Software Defined Radio Based Cognitive Radio Test-Bed for LTE Networks”. International Journal of Engineering and Technology 7, no. 3.1 (August 4, 2018): 51–55. Accessed February 25, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/16797.