Optimal power and number of cooperation node in cooperative spectrum sensing

Author

Xian Zhang ; Zi Yun

Author_Institution

Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

fYear

2013

fDate

23-25 March 2013

Firstpage

1406

Lastpage

1409

Abstract

In a cognitive radio network, cooperative spectrum sensing can improve the accuracy of spectrum sensing and alleviate the hidden terminal problem. Cooperative spectrum sensing frame has three phases: sensing phase, cooperation phase and transmission phase. In this paper, we investigate the problem of designing the power and number of cooperative node (CN) in the cooperation phase to maximize the average throughput for secondary user (SU), under the constraint that the total cooperation and transmission power is fixed. Then, we investigate the optimal CN power or number when CN power, which yield to the maximum average throughput for SU.

Keywords

cognitive radio; cooperative communication; radio spectrum management; CN; cognitive radio network; cooperation phase; cooperative node; cooperative spectrum sensing; hidden terminal problem; optimal power; secondary user; sensing phase; total cooperation; transmission phase; transmission power; Accuracy; Cognitive radio; Interference; Sensors; Throughput; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Science and Technology (ICIST), 2013 International Conference on

Conference_Location

Yangzhou

Print_ISBN

978-1-4673-5137-9

Type

conf

DOI

10.1109/ICIST.2013.6747800

Filename

6747800