Spectrum Sensing Methods and RF Architectures for Cognitive Radios

Title:Spectrum Sensing Methods and RF Architectures for Cognitive Radios

Volume: 5 Issue: 2

Author(s): Mario Bkassiny, Yang Li, Georges El-Howayek, Sudharman K. Jayaweera and Christos G. Christodoulou

Affiliation:

Keywords: Cognitive radio, cooperative spectrum sensing, dynamic spectrum access, energy detection, multi-resolution spectrum sensing, opportunistic spectrum access, spectrum sensing

Abstract: In this paper, we review some of the recent patents on spectrum sensing techniques for cognitive radio (CR) applications. The presented patents are categorized under: 1) spectrum sensing algorithms and architectures, 2) spectrum sensing and data communication and 3) cooperative spectrum sensing. The presented patents include special sensing algorithms that are based on the multi-resolution spectrum sensing (MRSS) approach, which ensures reliability of the spectrum sensing in wireless RF environments. We also discuss a CR patent that includes multiple RF chains to perform simultaneous cognitive tasks. Several patents that consider cooperative sensing are also presented as a solution to the hidden terminal problem inherent in wireless networks. We review the advantages and disadvantages of the presented patents and propose future directions for developing spectrum sensing techniques for CR’s.

Cite this article as:

Bkassiny Mario, Li Yang, El-Howayek Georges, K. Jayaweera Sudharman and G. Christodoulou Christos, Spectrum Sensing Methods and RF Architectures for Cognitive Radios, Recent Patents on Computer Science 2012; 5 (2) . https://dx.doi.org/10.2174/2213275911205020083