CRAHNs: Cognitive radio ad hoc networks
Ad Hoc Networks
A survey on MAC protocols for cognitive radio networks
Ad Hoc Networks
A channel selection mechanism based on incumbent appearance expectation for cognitive networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Performance analysis of slotted ALOHA based multi-channel cognitive packet radio network
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
A cognitive radio network architecture without control channel
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Dynamic power management in cognitive radio networks based on constrained stochastic games
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Design and analysis of a sensing error-aware MAC protocol for cognitive radio networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Q-learning for opportunistic spectrum access
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Implementation and performance measurement and analysis of OLSR protocol
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Channel selection in spectrum agile and cognitive MAC protocols for wireless sensor networks
Proceedings of the 8th ACM international workshop on Mobility management and wireless access
Mean-variance based QoS management in cognitive radio
IEEE Transactions on Wireless 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
A multi-channel testbed for dynamic spectrum access (DSA) networks
Proceedings of the 6th ACM workshop on Wireless multimedia networking and computing
Application-aware dynamic spectrum access
Wireless Networks
Enabling opportunistic and dynamic spectrum access through learning techniques
Wireless Communications & Mobile Computing
A survey of common control channel design in cognitive radio networks
Physical Communication
DSASync: managing end-to-end connections in dynamic spectrum access wireless LANs
IEEE/ACM Transactions on Networking (TON)
An auction-based MAC protocol for cognitive radio networks
International Journal of Communication Systems
Spatial Spectrum Reuse for Opportunistic Spectrum Access in Infrastructure-Based Systems
Wireless Personal Communications: An International Journal
Slow hopping based cooperative sensing MAC protocol for cognitive radio networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Wireless networks and devices have been rapidly gaining popularity over their wired counterparts. This popularity, in turn, has been generating an explosive and ever-increasing demand for, and hence creating a shortage of, the radio spectrum. Existing studies indicate that this foreseen spectrum shortage is not so much due to the scarcity of the radio spectrum, but due to the inefficiency of current spectrum access methods, thus leaving spectrum opportunities along both the time and the frequency dimensions that wireless devices can exploit. Fortunately, recent technological advances have made it possible to build software-defined radios (SDRs) which, unlike traditional radios, can switch from one frequency band to another at little or no cost. We propose a MAC protocol, called Opportunistic Spectrum MAC (OS-MAC), for wireless networks equipped with cognitive radios like SDRs. OS-MAC (1) adaptively and dynamically seeks and exploits opportunities in both licensed and unlicensed spectra and along both the time and the frequency dimensions; (2) accesses and shares spectrum among different unlicensed and licensed users; and (3) coordinates with other unlicensed users for better spectrum utilization. Using extensive simulation, OS-MAC is shown to be far more effective than current access protocols from both the network's and the user's perspectives.