Assistant Professor, Department of Electronics and Communication, Jaipur National University, Jaipur, India
*Corresponding author email id: sunil8gyanvihar@gmail.com
Online published on 2 August, 2016.
Cognitive radio () is an emerging and fascinating technology for the opportunistic use of underutilised spectrum that promises to change the future technological trends forever, if employed properly. One of the major challenges in CR network is spectrum sensing that is to detect the presence of licenced primary transmissions. In this paper, a survey of various spectrum sensing methodologies is presented.
Cognitive radio, Spectrum sensing, Primary and secondary users, Spectrum, Interference, Transmissions
