An introduction to signal detection and estimation (2nd ed.)
An introduction to signal detection and estimation (2nd ed.)
Bluetooth dynamic scheduling and interference mitigation
Mobile Networks and Applications
Proceedings of the 10th annual international conference on Mobile computing and networking
Traffic Modeling with Gamma Mixtures and Dynamical Bandwidth Provisioning
CNSR '06 Proceedings of the 4th Annual Communication Networks and Services Research Conference
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
In-band spectrum sensing in cognitive radio networks: energy detection or feature detection?
Proceedings of the 14th ACM international conference on Mobile computing and networking
Opportunistic Spectrum Access via Periodic Channel Sensing
IEEE Transactions on Signal Processing
Bluetooth and WLAN coexistence: challenges and solutions
IEEE Wireless Communications
IEEE Transactions on Information Theory
Recent advances in cognitive communications
IEEE Communications Magazine
Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP framework
IEEE Journal on Selected Areas in Communications
Cognitive Medium Access: Constraining Interference Based on Experimental Models
IEEE Journal on Selected Areas in Communications
Opportunistic medium access control for maximizing packet delivery rate in dynamic access networks
Journal of Network and Computer Applications
Journal of Electrical and Computer Engineering - Special issue on Resource Allocation in Communications and Computing
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Wireless services in the unlicensed bands are proliferating but frequently face high interference from other devices due to a lack of coordination among heterogeneous technologies. In this paper we study how cognitive radio concepts enable systems to sense and predict interference patterns and adapt their spectrum access accordingly. This leads to a new cognitive coexistence paradigm, in which cognitive radio implicitly coordinates the spectrum access of heterogeneous systems. Within this framework, we investigate coexistence with a set of parallel WLAN bands: based on predicting WLAN activity, the cognitive radio dynamically hops between the bands to avoid collisions and reduce interference. The development of a real-time test bed is presented, and used to corroborate theoretical results and model assumptions. Numerical results show a good fit between theory and experiment and demonstrate that sensing and prediction can mitigate interference effectively.