Is the OR Rule a Good Choice for Cooperative Sensing in Cognitive Radio Networks?

Author

Wu, Ying ; Liu, Yunxue ; Fan, Wenqiang ; Li, Fen ; Ji, Shasha

Author_Institution

Sch. of Sci. & Technol. for Opto-Electron. Inf., Yantai Univ., Yantai, China

fYear

2011

Firstpage

1

Lastpage

4

Abstract

This paper addresses the problem of the optimal fusion rule adopted in cooperative spectrum sensing over different channels. Evidence from the previous literatures suggests that OR rule is a good choice for cooperative spectrum sensing. After deeply research, we find the fact is not such. Extensive analysis and numerical simulations confirm that OR rule is a good choice in a few cases, such as Rayleigh channels with small cognitive networks. However, Majority rule is the optimal fusion rule in most cases, such as Rayleigh channels at lower average SNR with large cognitive networks, AWGN channels and Nakagami channels(m≥3).

Keywords

AWGN channels; Nakagami channels; Rayleigh channels; cognitive radio; cooperative communication; numerical analysis; radio networks; sensor fusion; AWGN channels; Nakagami channels; OR rule; Rayleigh channels; cognitive radio networks; cooperative spectrum sensing; numerical simulations; optimal fusion rule; AWGN channels; Cognitive radio; Nakagami distribution; Rayleigh channels; Sensors; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Conference_Location

Wuhan

ISSN

2161-9646

Print_ISBN

978-1-4244-6250-6

Type

conf

DOI

10.1109/wicom.2011.6040019

Filename

6040019