A method to enhance the reliability of the local spectrum sensing

Author

Truc-Thanh Tran ; Hyung-Yun Kong

Author_Institution

Dept. of Electr. Eng., Univ. of Ulsan, Ulsan, South Korea

fYear

2011

fDate

2-4 Aug. 2011

Firstpage

81

Lastpage

84

Abstract

This paper is focused on analyzing the effects of primary user (PU) signal arrival in the sensing interval on the local spectrum sensing performance. The probability for signal arrival at a sample in the sensing time is uniformly distributed. In this case, the performance degradation of the conventional energy detection (CED) method is analyzed. Furthermore, in order to enhance performance, an approach of estimating the signal arrival time is proposed to cooperate with the composite energy detection. The mathematical analysis and numerical simulation are employed to investigate and show the resulted spectrum sensing performance.

Keywords

cognitive radio; radio spectrum management; reliability; composite energy detection; conventional energy detection method; local spectrum sensing; mathematical analysis; numerical simulation; performance degradation; primary user signal arrival; reliability; sensing interval; Cognitive radio; Estimation; Reliability; Sensors; Signal to noise ratio; Wireless sensor networks; UMP test; cognitive radio; composite detection; estimation; spectrum sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2011 International Conference on

Conference_Location

Da Nang

ISSN

2162-1020

Print_ISBN

978-1-4577-1206-7

Type

conf

DOI

10.1109/ATC.2011.6027440

Filename

6027440