A distributed cooperative spectrum sensing based on network code in cognitive radios

Author

Hao, Zhang-hong ; Tang, You-xi ; Xia, Jin-xiang

Author_Institution

Nat. key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2009

fDate

23-25 Oct. 2009

Firstpage

9

Lastpage

13

Abstract

In this paper, we develop a distributed cooperative spectrum sensing algorithm based on network code to decrease the need for bandwidth in cognitive radios. The model of the distributed cooperative spectrum sensing is analyzed, and the algorithm of distributed scheme based on network code is described. The simulation results show that compared with the distributed scheme without network code and the non-cooperative one, the throughput of secondary users is increased apparently, and also, the probability of detection of the distributed scheme with network code is improved about 10% and 20%, respectively, further, the optimal sensing time is shorter about 82% and 88%, respectively.

Keywords

cognitive radio; distributed sensors; network coding; probability; radio spectrum management; cognitive radios; detection probability; distributed cooperative spectrum sensing algorithm; network code; optimal sensing time; secondary users throughput; Algorithm design and analysis; Bandwidth; Cognitive radio; Detectors; Electronic mail; FCC; Intelligent networks; Matched filters; Resource management; Throughput; Distributed cooperative spectrum sensing; cognitive radio; network code; optimal sensing time; throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Apperceiving Computing and Intelligence Analysis, 2009. ICACIA 2009. International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5204-0

Electronic_ISBN

978-1-4244-5206-4

Type

conf

DOI

10.1109/ICACIA.2009.5361163

Filename

5361163