Making the best of limited resources: differential sensing in cognitive PANs
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
White space networking with wi-fi like connectivity
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Spatial statistics and models of spectrum use
Computer Communications
Optimal multiband joint detection for spectrum sensing in cognitive radio networks
IEEE Transactions on Signal Processing
Capacity and energy efficiency of multi-user spectrum sharing systems with opportunistic scheduling
IEEE Transactions on Wireless Communications
Automatic modulation classification for cognitive radios using cyclic feature detection
IEEE Circuits and Systems Magazine
Spectrum sensing for cognitive radio
RWS'09 Proceedings of the 4th international conference on Radio and wireless symposium
Cooperative diversity of spectrum sensing in cognitive radio networks
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
Mobility Management Strategies in Heterogeneous Cognitive Radio Networks
Journal of Network and Systems Management
Dynamic threshold based spectrum detection in cognitive radio systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
The performance analysis of spectrum sensing algorithms based on wavelet edge detection
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A energy prediction based spectrum sensing approach for cognitive radio networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
On performance comparison of wideband multiple primary user detection methods in cognitive radios
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Spectrum sensing in wideband OFDM cognitive radios
IEEE Transactions on Signal Processing
EURASIP Journal on Advances in Signal Processing - Special issue on advanced signal processing for cognitive radio networks
Cooperative spectrum sensing over correlated log-normal sensing and reporting channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cooperative diversity of spectrum sensing for cognitive radio systems
IEEE Transactions on Signal Processing
Cooperative spectrum sensing in cognitive radios with incomplete likelihood functions
IEEE Transactions on Signal Processing
Dynamic threshold adaptation for spectrum sensing in cognitive radio systems
RWS'10 Proceedings of the 2010 IEEE conference on Radio and wireless symposium
Physical layer bootstrapping protocol for cognitive radio networks
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Mobile Networks and Applications
Spectrum sensing measurements of pilot, energy, and collaborative detection
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Efficient cooperative spectrum sensing with minimum overhead in cognitive radio
IEEE Transactions on Wireless Communications
EURASIP Journal on Wireless Communications and Networking - Special issue on dynamic spectrum access: from the concept to the implementation
Adaptive Counting Rule for Cooperative Spectrum Sensing Under Correlated Environments
Wireless Personal Communications: An International Journal
A Comparison of Energy Detectability Models for Cognitive Radios in Fading Environments
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
Collaborative spectrum sensing by combining energy and cyclostationarity-based detection schemes
International Journal of Ad Hoc and Ubiquitous Computing
Collaborative spectrum sensing by combining energy and cyclostationarity-based detection schemes
International Journal of Ad Hoc and Ubiquitous Computing
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Spectrum sensing has been identified as a key enabling functionality to ensure that cognitive radios would not interfere with primary users, by reliably detecting primary user signals. Recent research studied spectrum sensing using energy detection and network cooperation via modeling and simulations. However, there is a lack of experimental study that shows the feasibility and practical performance limits of this approach under real noise and interference sources in wireless channels. In this work, we implemented energy detector on a wireless testbed and measured the required sensing time needed to achieve the desired probability of detection and false alarm for modulated and sinewave-pilot signals in low SNR regime. We measured the minimum detectable signal levels set by the receiver noise uncertainties. Our experimental study also measured the sensing improvements achieved via network cooperation, identified the robust threshold rule for hard decision combining and quantified the effects of spatial separation between radios in indoor environments.