Cooperative spectrum sensing based on the limiting eigenvalue ratio distribution in Wishart matrices
IEEE Communications Letters
Spatial spectrum holes for cognitive radio with relay-assisted directional transmission
IEEE Transactions on Wireless Communications
Proactive detection of spectrum opportunities in primary systems with power control
IEEE Transactions on Wireless Communications
Probability-based combination for cooperative spectrum sensing
IEEE Transactions on Communications
Spectrum sensing issues in cognitive radio networks
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Cooperative spectrum sensing over correlated log-normal sensing and reporting channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Proactive detection of spectrum holes in cognitive radio
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Probability-based periodic spectrum sensing during secondary communication
IEEE Transactions on Communications
Adaptive two thresholds based energy detection for cooperative spectrum sensing
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Analysis of area under the ROC curve of energy detection
IEEE Transactions on Wireless Communications
Performance limits of cooperative energy detection in fading environments
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
An auction-based mechanism for cooperative sensing in cognitive networks
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Proceedings of the 5th International ICST Conference on Simulation Tools and Techniques
Cooperative spectrum sensing in cognitive radio networks: A survey
Physical Communication
A cooperative spectrum sensing scheme using adaptive fuzzy system for cognitive radio networks
Information Sciences: an International Journal
Performance analysis of different types of sensor networks for cognitive radios
Journal of Electrical and Computer Engineering
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Sensing Confidence Level-Based Joint Spectrum and Power Allocation in Cognitive Radio Networks
Wireless Personal Communications: An International Journal
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In this letter, we consider cooperative spectrum sensing based on energy detection in cognitive radio networks. Soft combination of the observed energies from different cognitive radio users is investigated. Based on the Neyman-Pearson criterion, we obtain an optimal soft combination scheme that maximizes the detection probability for a given false alarm probability. Encouraged by the performance gain of soft combination, we further propose a new softened hard combination scheme with two-bit overhead for each user and achieve a good tradeoff between detection performance and complexity.