Charging and accounting for bursty connections
Internet economics
Measurement-Based Usage Charges in Comminucations Networks
Operations Research
Impact of interference on multi-hop wireless network performance
Proceedings of the 9th annual international conference on Mobile computing and networking
Utilization and fairness in spectrum assignment for opportunistic spectrum access
Mobile Networks and Applications
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Allocating dynamic time-spectrum blocks in cognitive radio networks
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Supporting demanding wireless applications with frequency-agile radios
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Performance of distributed dynamic frequency selection schemes for interference reducing networks
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Joint power control and beamforming for cognitive radio networks
IEEE Transactions on Wireless Communications
Joint rate and power allocation for cognitive radios in dynamic spectrum access environment
IEEE Transactions on Wireless Communications - Part 2
Extending the effective bandwidth concept to networks with priority classes
IEEE Communications Magazine
A survey on spectrum management in cognitive radio networks
IEEE Communications Magazine
Equivalent capacity and its application to bandwidth allocation in high-speed networks
IEEE Journal on Selected Areas in Communications
Dynamic spectrum access in open spectrum wireless networks
IEEE Journal on Selected Areas in Communications
Spectrum sharing for unlicensed bands
IEEE Journal on Selected Areas in Communications
Admission control for statistical QoS: theory and practice
IEEE Network: The Magazine of Global Internetworking
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Future wireless networks will dynamically access spectrum to maximize its utilization. Conventional design of dynamic spectrum access focuses on maximizing spectrum utilization, but faces the problem of degraded reliability due to unregulated demands and access behaviors. Without providing proper reliability guarantee, dynamic spectrum access is unacceptable to many infrastructure networks and services. In this paper, we propose SPARTA, a new architecture for dynamic spectrum access that balances access reliability and spectrum utilization. SPARTA includes two complementary techniques: proactive admission control performed by a central entity to determine the set of wireless nodes to be supported with only statistical information of their spectrum demands, and online adaptation performed by admitted wireless nodes to adjust their instantaneous spectrum usage to time-varying demand. Using both theoretical analysis and simulation, we show that SPARTA fulfills the reliability requirements while dynamically multiplexing spectrum demands to improve utilization. Compared to conventional solutions, SPARTA improves spectrum utilization by 80%-200%. Finally, SPARTA also allows service providers to explore the tradeoff between utilization and reliability to make the best use of the spectrum. To our best knowledge, our work is the first to identify and address such a tradeoff.