Research Article
Spectrum Sensing: To Cooperate or Not to Cooperate?
@ARTICLE{10.4108/ws.1.1.e3, author={Dongliang Duan and Liuqing Yang and Shuguang Cui}, title={Spectrum Sensing: To Cooperate or Not to Cooperate?}, journal={EAI Endorsed Transactions on Wireless Spectrum}, volume={1}, number={1}, publisher={ICST}, journal_a={WS}, year={2014}, month={4}, keywords={Cognitive Radio, Cooperative Spectrum Sensing, Diversity, Efficiency and Reliability}, doi={10.4108/ws.1.1.e3} }- Dongliang Duan
Liuqing Yang
Shuguang Cui
Year: 2014
Spectrum Sensing: To Cooperate or Not to Cooperate?
WS
ICST
DOI: 10.4108/ws.1.1.e3
Abstract
While it is well accepted that cooperative spectrum sensing will significantly improve the sensing performance, the necessity of cooperation is not sufficiently appreciated. In this paper, by analyzing the spectrum sensing problem from the system perspective, we show that without cooperation, the performance will suffer from a fundamental tradeoff between reliability and efficiency. However, if cooperation is incorporated in the spectrum sensing process and the threshold is selected appropriately, the efficiencyreliability tradeoff in the non-cooperative case can be largely overcome by exploiting the cooperative diversity. These results show that cooperation in spectrum sensing is not just a luxury but a necessity.
Copyright © 2014 D. Duan et al., licensed to ICST. This is an open access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.
