Introduction to Reinforcement Learning
Introduction to Reinforcement Learning
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
End-to-End QoS Network Design: Quality of Service in LANs, WANs, and VPNs (Networking Technology)
End-to-End QoS Network Design: Quality of Service in LANs, WANs, and VPNs (Networking Technology)
Optimal channel probing and transmission scheduling for opportunistic spectrum access
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Towards context-aware wireless spectrum agility
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Cognitive Networks: Towards Self-Aware Networks
Cognitive Networks: Towards Self-Aware Networks
QoS-aware distributed spectrum sharing for heterogeneous wireless cognitive networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
OS-MAC: An Efficient MAC Protocol for Spectrum-Agile Wireless Networks
IEEE Transactions on Mobile Computing
Efficient Discovery of Spectrum Opportunities with MAC-Layer Sensing in Cognitive Radio Networks
IEEE Transactions on Mobile Computing
Technical, Commercial and Regulatory Challenges of QoS: An Internet Service Model Perspective
Technical, Commercial and Regulatory Challenges of QoS: An Internet Service Model Perspective
Traffic-aware dynamic spectrum access
Proceedings of the 4th Annual International Conference on Wireless Internet
Sora: high performance software radio using general purpose multi-core processors
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
Enabling MAC protocol implementations on software-defined radios
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
Dynamic spectrum access in heterogeneous networks: HSDPA and WiMAX
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
White space networking with wi-fi like connectivity
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Dynamic spectrum access in DTV whitespaces: design rules, architecture and algorithms
Proceedings of the 15th annual international conference on Mobile computing and networking
Mining spectrum usage data: a large-scale spectrum measurement study
Proceedings of the 15th annual international conference on Mobile computing and networking
Frequency-aware rate adaptation and MAC protocols
Proceedings of the 15th annual international conference on Mobile computing and networking
A Case Study of QoS Provisioning in TV-Band Cognitive Radio Networks
ICCCN '09 Proceedings of the 2009 Proceedings of 18th International Conference on Computer Communications and Networks
Intentional networking: opportunistic exploitation of mobile network diversity
Proceedings of the sixteenth annual international conference on Mobile computing and networking
Understanding Wi-Fi 2.0: from the economical perspective of wireless service providers
IEEE Wireless Communications
ATL: an adaptive transport layer suite for next-generation wireless Internet
IEEE Journal on Selected Areas in Communications
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
Spectrum sensing: A distributed approach for cognitive terminals
IEEE Journal on Selected Areas in Communications
What and how much to gain by spectrum agility?
IEEE Journal on Selected Areas in Communications
Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP framework
IEEE Journal on Selected Areas in Communications
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Dynamic Spectrum Access (DSA) allows unlicensed wireless devices to opportunistically access unoccupied licensed spectrum bands. DSA yields efficient spectrum utilization which can greatly improve wireless networking performance. In this paper, we advocate application-awareness to effectively manage the side-effects of DSA that can offset its benefits by adversely impacting application QoS. Simple application hints are found to be able to serve as key inputs in evaluating current spectrum conditions relative to application needs, leading to an informed DSA mechanism that minimizes the impact of undesirable DSA side-effects. Towards this goal, we propose a wireless service architecture called Context-Aware Spectrum Agility (CASA). The key elements of CASA are: (a) semantic dependency equations that provide the relationship between application-layer QoS state and lower-layer DSA parameters, (b) CASA Algorithm that adapts DSA parameters and activities to better suit application needs, and, (c) a low overhead interface to provide application context to DSA. CASA has been explicitly designed with the goals of practical deployment, low overhead operation, and is compatible with any DSA protocol. Compared to state-of-art DSA, the deployment of CASA along with DSA protocols is shown to improve QoS metrics, such as delay and jitter, by an average of 30 and 64%, respectively. CASA is also found to match the application QoS demands for more than 90% of the duration of a communication session--a 300+% improvement over conventional application-agnostic DSA.