Efficient Multicast on Irregular Switch-Based Cut-Through Networks with Up-Down Routing
IEEE Transactions on Parallel and Distributed Systems
Challenges: a radically new architecture for next generation mobile ad hoc networks
Proceedings of the 11th annual international conference on Mobile computing and networking
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Opportunistic Scheduling with Reliability Guarantees in Cognitive Radio Networks
IEEE Transactions on Mobile Computing
Proceedings of the 15th annual international conference on Mobile computing and networking
OFDM for cognitive radio: merits and challenges
IEEE Wireless Communications
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
Opportunistic Spectrum Access via Periodic Channel Sensing
IEEE Transactions on Signal Processing
The MPEG-4 fine-grained scalable video coding method for multimediastreaming over IP
IEEE Transactions on Multimedia
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Adaptive cross-layer protection strategies for robust scalable video transmission over 802.11 WLANs
IEEE Journal on Selected Areas in Communications
A tutorial on decomposition methods for network utility maximization
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
HC-MAC: A Hardware-Constrained Cognitive MAC for Efficient Spectrum Management
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Spectrum Sharing for Multi-Hop Networking with Cognitive Radios
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Circuits and Systems for Video Technology
Green Cooperative Cognitive Communication and Networking: A New Paradigm for Wireless Networks
Mobile Networks and Applications
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We investigate the problem of streaming multiple videos over multi-hop cognitive radio (CR) networks. Fine-Granularity-Scalability (FGS) and Medium-Grain-Scalable (MGS) videos are adopted to accommodate the heterogeneity among channel availabilities and dynamic network conditions. We obtain a mixed integer nonlinear programming (MINLP) problem formulation, with objectives to maximize the overall received video quality and to achieve fairness among the video sessions, while bounding the collision rate with primary users under the presence of spectrum sensing errors. We first solve the MINLP problem using a centralized sequential fixing algorithm, and derive upper and lower bounds for the objective value. We then apply dual decomposition to develop a distributed algorithm and prove its optimality and convergence conditions. The proposed algorithms are evaluated with simulations and are shown to be effective in supporting concurrent scalable video sessions in multi-hop CR networks.