Research Article
Double Threshold Energy Detection of Cooperative Spectrum Sensing in Cognitive Radio
@INPROCEEDINGS{10.1109/CROWNCOM.2008.4562451, author={Jiang Zhu and Zhengguang Xu and Furong Wang and Benxiong Huang and Bo Zhang}, title={Double Threshold Energy Detection of Cooperative Spectrum Sensing in Cognitive Radio}, proceedings={3rd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={7}, keywords={double threshold energy detect cooperative sensing cognitive radio}, doi={10.1109/CROWNCOM.2008.4562451} }- Jiang Zhu
Zhengguang Xu
Furong Wang
Benxiong Huang
Bo Zhang
Year: 2008
Double Threshold Energy Detection of Cooperative Spectrum Sensing in Cognitive Radio
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2008.4562451
Abstract
Cognitive radio has become an effective theory to solve the inefficiency of the spectrum usage, and cooperative spectrum sensing among the secondary users to detect the primary user accurately is broadly studied before. In this paper, we employ a double threshold method in energy detector to perform spectrum sensing, while a fusion center in the cognitive radio network collects the local decisions and observational values of the secondary users, and then makes the final decision to determine whether the primary user is absence or not. Simulation results will show that the spectrum sensing performance in AWGN channels is improved significantly under the proposed scheme as opposed to the conventional method.
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