Signal Processing in Cognitive Radio

Author

Ma, Jun ; Li, Geoffrey Ye ; Juang, Biing Hwang Fred

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

97

Issue

5

fYear

2009

fDate

5/1/2009 12:00:00 AM

Firstpage

805

Lastpage

823

Abstract

Cognitive radio allows for usage of licensed frequency bands by unlicensed users. However, these unlicensed (cognitive) users need to monitor the spectrum continuously to avoid possible interference with the licensed (primary) users. Apart from this, cognitive radio is expected to learn from its surroundings and perform functions that best serve its users. Such an adaptive technology naturally presents unique signal-processing challenges. In this paper, we describe the fundamental signal-processing aspects involved in developing a fully functional cognitive radio network, including spectrum sensing and spectrum sculpting.

Keywords

cognitive radio; interference suppression; matched filters; signal detection; cognitive radio network; interference suppression; matched filter detection; signal processing; Chromium; Cognitive radio; FCC; Frequency; Interference; Matched filters; Monitoring; RF signals; Signal processing; TV; Cyclostationary detection; energy detection; matched filter detection; spectrum sculpting; spectrum sensing;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/JPROC.2009.2015707

Filename

4840526