Review Article Open Access

A Review on Cognitive Radio for Next Generation Cellular Network and its Challenges

Nandhakumar Pandi1 and Arun Kumar1
  • 1 JECRC University, India


Cognitive Radio (CR) is considered an intelligent technology. It improves the utilization of the radio spectrum. The increasing number of new devices has resulted in growing congestion of the ISM bands. FCC issued an order only permitting unlicensed users (secondary users) to operate in white space without interfering with licensed users (primary users). Cognitive Radio Networks (CRNs) provides a solution to the problem of additional spectrum requirements by utilizing the spectrum more efficiently. CR is able to sense the spectrum and share the spectrum with unlicensed users. There are number of popular spectrum sensing techniques in CR such as cyclostationary feature detection, energy detection and matched filter detection, which capture the best available spectrum. They use a spectrum dynamically in wireless communication network. A CR with multicarrier technique (OFDM and FBMC) are the next generation of advanced cellular network, which would provide better spectrum utilization and therefore have greater capacity. In this study we have described and reviewed CR technology and its numerous features that may play a very essential role in the field of next generation wireless communication networks.

American Journal of Engineering and Applied Sciences
Volume 10 No. 2, 2017, 334-347


Submitted On: 11 February 2017 Published On: 4 April 2017

How to Cite: Pandi, N. & Kumar, A. (2017). A Review on Cognitive Radio for Next Generation Cellular Network and its Challenges. American Journal of Engineering and Applied Sciences, 10(2), 334-347.

  • 4 Citations



  • Cognitive Radio Network
  • OFDM
  • FBMC
  • CR Challenges
  • CR Projects
  • Spectrum Sensing