Channel capacity maximization in cooperative cognitive radio networks using game theory
ACM SIGMOBILE Mobile Computing and Communications Review
Analysis of cognitive radio spectrum access with finite user population
IEEE Communications Letters
IEEE Transactions on Wireless Communications
A resource allocation algorithm for real-time streaming in cognitive networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Cognitive networks achieve throughput scaling of a homogeneous network
WiOPT'09 Proceedings of the 7th international conference on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
On ergodic sum capacity of fading cognitive multiple-access and broadcast channels
IEEE Transactions on Information Theory
Opportunistic spectrum scheduling for multiuser cognitive radio: a queueing analysis
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
A new two-user cognitive radio channel model and its capacity analysis
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Channel capacity limits of cognitive radio with imperfect channel knowledge
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Throughput analysis for a contention-based dynamic spectrum sharing model
IEEE Transactions on Wireless Communications
Scalable video multicast in cognitive radio networks
IEEE Journal on Selected Areas in Communications
Adaptive QoS-aware channel access scheme for Cognitive Radio networks
International Journal of Ad Hoc and Ubiquitous Computing
Overlay Cognitive Radio in Wireless Mesh Networks
Wireless Personal Communications: An International Journal
Multicast throughput for large scale cognitive networks
Wireless Networks
Decentralized dynamic hop selection and power control in cognitive multi-hop relay systems
IEEE Transactions on Wireless Communications
Soft sensing and optimal power control for cognitive radio
IEEE Transactions on Wireless Communications
Channel resource allocation for VoIP applications in collaborative IEEE 802.11/802.16 networks
EURASIP Journal on Wireless Communications and Networking
QoS capacity of virtual wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Video streaming over cognitive radio networks
Proceedings of the 4th Workshop on Mobile Video
Spectrum sensing and power/rate control in CDMA cognitive radio networks
International Journal of Communication Systems
Capacity limits of spectrum-sharing systems over hyper-fading channels
Wireless Communications & Mobile Computing
Information theory applications in error bit rate analysis of digital image watermarking
Computers and Electrical Engineering
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We investigate the capacity of opportunistic communication in the presence of dynamic and distributed spectral activity, i.e., when the time varying spectral holes sensed by the cognitive transmitter are correlated but not identical to those sensed by the cognitive receiver. We develop a two switch model that captures the localized spectral activity estimates at the transmitter and receiver. The information theoretic framework of communication with side information is employed to characterize the capacity of the cognitive link with both causal and non-causal side information at the transmitter and/or the receiver. These capacity results are used to determine the benefits of any feedforward and feedback information. We find that cognitive radio capacity is robust to the uncertainties arising out of distributed and dynamic spectral environments, even when the communication occurs in bursts of only 3-5 symbols. The capacity depends strongly on the correlation of the local spectral environment at the cognitive transmitter and receiver