Title :
Evaluation of Spectrum Opportunity of Cognitive Radio Systems
Author_Institution :
Radio Technol. Res. Dept., Electron. & Commun. Res. Inst. (ETRI), Daejeon, South Korea
Abstract :
We evaluate spectrum opportunity, which is achievable if channel availability and successful channel utilization for a secondary user are granted, considering region of interference (ROI) for the secondary user. ROI is mainly dependent upon three ranges: the transmission range of the SU transmitter, the carrier sensing range of the SU transmitter, and the interference range of the SU receiver. Numerical result shows a proper carrier sensing range of a secondary user transmitter might be needed in order to get desired spectrum opportunity for the secondary user.
Keywords :
cognitive radio; radiofrequency interference; spread spectrum communication; wireless channels; ROI; SU receiver; SU transmitter; channel availability; channel utilization; cognitive radio systems; region of interference; spectrum opportunity; Availability; Cognitive radio; Interference; Radio transmitters; Receivers; Sensors;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601415
