Title :
Cognitive radio systems: Overview and challenges
Author :
Nguyen, Van Tam ; Villain, Frederic ; Le Guillou, Yann
Author_Institution :
Inst. TELECOM, TELECOM ParisTech, Paris, France
Abstract :
Cognitive radio system (CRS) is a disruptive technology targeting very high spectral efficiency. This paper presents an overview of CRS and summarizes the related regulation and standardization status. We point out some key research challenges, especially implementation challenges of cognitive radio and deduce research directions in CRS. Despite numerous challenges, the timeframe for the success of CRS is more linked to the economical and business model than real technological issues.
Keywords :
cognitive radio; standardisation; business model; cognitive radio systems; regulation; standardization status; technological issues; Baseband; Frequency modulation; Micromechanical devices; Radio frequency; Switches; TV; Wideband; cognitive network; cognitive radio systems; cogntitive radio; dynamic spectrum access; flexible transceiver; frequency-agile receiver; opportunistic radio; software defined radio; spectrum sensing; white spaces;
Conference_Titel :
Awareness Science and Technology (iCAST), 2011 3rd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4577-0887-9
DOI :
10.1109/ICAwST.2011.6163179
