Spatial spectrum holes for cognitive radio with relay-assisted directional transmission
IEEE Transactions on Wireless Communications
Cooperative spectrum sensing over correlated log-normal sensing and reporting channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cooperative sensing with transmit diversity based on randomized STBC in CR networks
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Adaptive two thresholds based energy detection for cooperative spectrum sensing
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Interference mitigation between ultra-wideband sensor network and other legal systems
EURASIP Journal on Wireless Communications and Networking - Special issue on radar and sonar sensor networks
ISRN Communications and Networking
An efficient contention-based reporting protocol for collaborative spectrum sensing
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Cooperative spectrum sensing in cognitive radio networks: A survey
Physical Communication
A Novel Technique for Wideband Spectrum Sensing in Cognitive Radio Through Phase-Field Segmentation
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Cooperative sensing with transmit diversity based on randomised STBC in CR networks
International Journal of Autonomous and Adaptive Communications Systems
Non-intrusive Cognitive Radio Using Adaptive Nulls-Steering
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Dynamic clustering scheme for distributed spectrum sensing in cognitive radio networks
International Journal of Communication Networks and Distributed Systems
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In the letter the problem of cooperative spectrum sensing is investigated in cognitive radio (CR) networks over Rayleigh fading channels. By taking into account the error effect on the decision reporting, a general performance analysis of cooperative spectrum sensing is given. The analytical detection results show that the performance of cooperative spectrum sensing is limited by the probability of reporting errors. To deal with this limitation, we propose a transmit diversity based cooperative spectrum sensing method. By regarding multiple CRs as a virtual antenna array, space-time coding and space-frequency coding are applied into CR networks over flat-fading and frequency-selective fading channels, respectively. Moreover, we propose a relay diversity based cooperative spectrum sensing approach to increase the diversity of detection when some CRs are in heavy shadowing. It is then shown that, when combined with algebraic coding, relay diversity can further improve the cooperative spectrum sensing performance.