The main objective of the cognitive radio research team at NRC is to create wireless information superhighway in the radio spectrum, dynamically and opportunistically accessing and allocating spectrum resources over a large range of bandwidths.

By sensing the (radio) environment and adapting to it cognitive radios can fill the whole spectrum in a smart manner resulting in a large increase in spectral efficiency. Not only enables cognitive radio an increased efficiency in the use of existing bands, its dynamics might also allow access to new bands for mobile services.

Research topics

• Distributed, autonomous architectures
• Dynamic spectrum use
• Collaborative spectrum sensing
• Power efficiency
• Self organization
• Mesh networking
• Security and privacy
• Innovative spectrum regulations and business models

Publications

J. Lunden, V. Koivunen, A. Huttunen, V.H. Poor, "Spectrum Sensing in Cognitive Radios Based on Multiple Cyclic Frequencies", Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), 2007.

Kari Leppänen, Niko Kiukkonen, and Kari Kalliojärvi, “Flexible Spectrum Use: Centralized or Distributed Control?”, Wireless World Research Forum (WWRF) Meeting#20, April 2008.

Collaborators

The Cognitive Radio team cooperates closely with leading universities and industry partners, for instance via the EU FP7 project E3.

Contact

Carl Wijting, Team Leader

Team Members

Javier Flors Sidro | Ari Hottinen | Anu Huttunen | Jari Junell | Juha Pihlaja | Adreas Richter