A multitaper spectrum based detector for cognitive radio
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Prioritized spectrum sensing in cognitive radio based on spatiotemporal statistical fusion
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Maximum channel throughput via cooperative spectrum sensing in cognitive radio networks
IEEE Transactions on Wireless Communications
Proactive detection of spectrum opportunities in primary systems with power control
IEEE Transactions on Wireless Communications
Cooperation spectrum sensing using optimal joint detecting
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Probability-based combination for cooperative spectrum sensing
IEEE Transactions on Communications
Distributed spectrum sensing for cognitive radio networks by exploiting sparsity
IEEE Transactions on Signal Processing
Distributed algorithm for collaborative detection in cognitive radio networks
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
Dynamic power management in cognitive radio networks based on constrained stochastic games
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Receiver statistics for spectrum monitoring while communicating
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cyclostationary signatures in OFDM-based cognitive radios with cyclic delay diversity
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
Evolutionary cooperative spectrum sensing game: how to collaborate?
IEEE Transactions on Communications
Probability-based periodic spectrum sensing during secondary communication
IEEE Transactions on Communications
Spectrum sensing with active cognitive systems
IEEE Transactions on Wireless Communications
An evolutionary dynamics game in cooperative spectrum sensing
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Spline-based spectrum cartography for cognitive radios
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Spectrum Sensing Framework for Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Novel Research on Cognitive Pilot Channel in Cognitive Wireless Network
Wireless Personal Communications: An International Journal
Internet of networks: is the future internet a cognitive radio application?
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Wireless Personal Communications: An International Journal
Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
International Journal of Communication Networks and Distributed Systems
A MAC-Layer QoS Provisioning Protocol for Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Optimization of Time-Domain Combining Cooperative Spectrum Sensing in Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Hi-index | 0.08 |
Cognitive radio networks need to continuously monitor spectrum to detect the presence of the licensed users. In this paper, we have exploited spatial diversity in multiuser networks to improve the spectrum sensing capabilities of centralized cognitive radio (CR) networks. We develop a fixed and a variable relay sensing scheme. The fixed relay scheme employs a relay that has a fixed location to help the cognitive network base station detect the presence of the primary user. The variable relay sensing scheme employs cognitive users distributed at various locations as relays to sense data and to improve the detection capabilities. This effectively reduces the average detection time by exploiting spatial diversity inherent in multiuser networks. Finally, we study the network outage probabilities to compare the performances of the fixed and variable relay schemes.