On the distributed cooperative spectrum sensing for cognitive radio

Author

Wang, Wenzhong ; Zhang, Luyong ; Zou, Weizia ; Zhou, Zheng

Author_Institution

Univ. of Post & Telecommun., Beijing

fYear

2007

fDate

17-19 Oct. 2007

Firstpage

1496

Lastpage

1501

Abstract

Cognitive radio can increase spectrum utilization and avoid interference to licensed users by spectrum sensing. However limitation exists in local spectrum sensing by single cognitive radio node. Although several methods of cooperative spectrum sensing schemes are proposed, they were not checked under different SNR levels. Based on the investigation of the cooperation between CR nodes of different SNR levels, we propose the neighbor exchange of spectrum sensing information scheme aims at comprehensive thinking on increasing spectrum utilization, decreasing the interference to primary licensee and also the traffic load in whole networks.

Keywords

cognitive radio; interference suppression; spectral analysis; telecommunication traffic; cognitive radio; distributed cooperative spectrum sensing; interference avoidance; network traffic; Cognitive radio; Collaboration; Computer networks; Fading; Information technology; Next generation networking; Signal detection; Tellurium; Wireless networks; Cognitive Radio (CR); Neighbor Exchange of Spectrum Sensing Information; Spectrum Sensing (SS);

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2007. ISCIT '07. International Symposium on

Conference_Location

Sydney,. NSW

Print_ISBN

978-1-4244-0976-1

Electronic_ISBN

978-1-4244-0977-8

Type

conf

DOI

10.1109/ISCIT.2007.4392252

Filename

4392252