IEEE Wireless Communications Magazine
Special Issue on

Cognitive Radio Networks: A Practical Perspective

Contemporary wireless system design must typically incorporate increased bandwidth requirements due to the persistent trend for higher wireless multimedia data rates. Increased bandwidth may be achieved by developing efficient strategies for spectrum management. The cognitive radio concept proposes to push efficiency in spectrum access and resource allocation beyond its traditional limits, by introducing spectrum sharing, coexistence, and cooperation among heterogeneous wireless networks. This approach has been worldwide recognized by standardization and regulation bodies, and a number of wireless technologies could benefit from it.

Examples abound. WiFi networks could operate in other portions of the spectrum than the traditional ones thus avoiding the already overcrowded ISM bands. Sensor networks deployed in factories or highly interfered environments could adaptively select the frequency bands that are less used by other nearby wireless devices and allow reliable data transfer. Communications systems using OFDM could resort to non-contiguous carriers usage for dynamic spectrum access, thus favoring coexistence with other technologies while still providing high data rates.

Important technical challenges still need to be overcome, however, in order to achieve successful coexistence and cooperation among heterogeneous systems. Open research issues cover a wide range of system aspects, from the hardware component up to network layer design. Technical, economical, and regulatory challenges need to be addressed as well. In order to compel the cognitive networking vision, experts in various aspects of wireless design must come together for a joint effort towards system level optimization.

The objective of this special issue is to present a collection of high-quality papers that report the latest research advances in the design and implementation of cognitive networking, as well as survey papers on the major challenges and possible solutions that lead the path to real-world cognitive radio systems.

We solicit both academic and industrial contributions, which are original, previously unpublished and not currently under review by another journal.

The submitted papers should focus on practical aspects of cognitive radio networks, system design issues, implementations/testbeds, or measurements in real environments. Topics of interest include, but are not limited to:

Manuscript Submission
The papers should be tutorial in nature to help non-expert readers gain a good understanding of the topic. The papers should also discuss recent advances and future research topics. Authors must follow theIEEE Wireless Communications Magazine guidelines for preparation of the manuscript and submit it via Manuscript Central at For further details, please refer to "Submission Guidelines" in IEEE Wireless Communications Magazine website at:

Submission Schedule
Manuscript Submission: January 15, 2012
Notification of acceptance: April 15, 2012
Final Manuscript Due: May 15, 2012
Publication: August 2012

Guest Editors
Carla-Fabiana Chiasserini
Politecnico di Torino, Italy

Maria-Gabriella Di Benedetto
University of Rome "La Sapienza", Italy

Xiangpeng Jing
EMC Corporation, USA

Ping Zhang
Beijing University of Posts and Telecommunications, China