Mobile communications
A framework for opportunistic scheduling in wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Convex Optimization
NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Resource allocation and cross-layer control in wireless networks
Foundations and Trends® in Networking
Analysis and design of cognitive radio networks and distributed radio resource management algorithms
Analysis and design of cognitive radio networks and distributed radio resource management algorithms
Opportunistic Scheduling with Reliability Guarantees in Cognitive Radio Networks
IEEE Transactions on Mobile Computing
Dynamic spectrum leasing in cognitive radio networks via primary-secondary user power control games
IEEE Transactions on Wireless Communications
Optimal control of constrained cognitive radio networks with dynamic population size
INFOCOM'10 Proceedings of the 29th conference on Information communications
Utility-optimal scheduling in time-varying wireless networks with delay constraints
Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
Single-cell forward link power allocation using pricing in wireless networks
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Energy optimal control for time-varying wireless networks
IEEE Transactions on Information Theory
Providing quality of service over a shared wireless link
IEEE Communications Magazine
Approaches to spectrum sharing
IEEE Communications Magazine
Super-fast delay tradeoffs for utility optimal fair scheduling in wireless networks
IEEE Journal on Selected Areas in Communications
Spectrum Leasing to Cooperating Secondary Ad Hoc Networks
IEEE Journal on Selected Areas in Communications
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In this paper, optimal resource allocation policies are characterized for wireless cognitive networks under the spectrum leasing model. We propose cooperative schemes in which secondary users share the time-slot with primary users in return for cooperation. Cooperation is feasible only if the primary system's performance is improved over the non-cooperative case. First, we investigate a scheduling problem where secondary users are interested in immediate rewards. Here, we consider both infinite and finite backlog cases. Then, we formulate another problem where the secondary users are guaranteed a portion of the primary utility, on a long-term basis, in return for cooperation. Finally, we present a power allocation problem where the goal is to maximize the expected net benefit defined as utility minus cost of energy. Our proposed scheduling policies are shown to outperform non-cooperative scheduling policies, in terms of expected utility and net benefit, for a given set of feasible constraints. Based on Lyapunov optimization techniques, we show that our schemes are arbitrarily close to the optimal performance at the price of reduced convergence rate.