Hints for computer system design
SOSP '83 Proceedings of the ninth ACM symposium on Operating systems principles
Ghosts in the machine: interfaces for better power management
Proceedings of the 2nd international conference on Mobile systems, applications, and services
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Towards an Architecture for Efficient Spectrum Slicing
HOTMOBILE '07 Proceedings of the Eighth IEEE Workshop on Mobile Computing Systems and Applications
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
What and how much to gain by spectrum agility?
IEEE Journal on Selected Areas in Communications
Cognitive radios for dynamic spectrum access: from concept to reality
IEEE Wireless Communications
Analysis of QoS Provisioning in Cognitive Radio Networks: A Case Study
Wireless Personal Communications: An International Journal
Application-aware dynamic spectrum access
Wireless Networks
DSASync: managing end-to-end connections in dynamic spectrum access wireless LANs
IEEE/ACM Transactions on Networking (TON)
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Spectrum agility (SA) is a novel way of improving spectrum utilization efficiency and making greater bandwidth available to network applications. Despite its advantages, the fundamental operations (e.g., periodic spectrum sensing) involved in realizing SA can also adversely affect application performance. We propose Context-Aware Spectrum Agility (CASA), which uses application hints together with the current channel condition to adapt key SA parameters. Our preliminary evaluation shows that CASA improves throughput by 35%, and is also more effective in meeting application demands than conventional SA.