Parallel and Distributed Computation: Numerical Methods
Parallel and Distributed Computation: Numerical Methods
Convex Optimization
A Cross-Layer Framework for Exploiting Virtual MISO Links in Mobile Ad Hoc Networks
IEEE Transactions on Mobile Computing
Foundations and Trends® in Networking
Optimal relay assignment for cooperative communications
Proceedings of the 9th ACM international symposium on Mobile ad hoc networking and computing
Stackelberg game for utility-based cooperative cognitiveradio networks
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
IEEE Transactions on Mobile Computing
Cooperative resource management in cognitive WiMAX with femto cells
INFOCOM'10 Proceedings of the 29th conference on Information communications
Efficient resource allocation with flexible channel cooperation in OFDMA cognitive radio networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
INFOCOM'10 Proceedings of the 29th conference on Information communications
On Optimal Cooperator Selection Policies for Multi-Hop Ad Hoc Networks
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Capacity bounds and power allocation for wireless relay channels
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Guest editorial- Cooperative communications and networking
IEEE Journal on Selected Areas in Communications
Auction-Based Resource Allocation for Cooperative Communications
IEEE Journal on Selected Areas in Communications
Jointly optimal rate control and relay selection for cooperative wireless video streaming
IEEE/ACM Transactions on Networking (TON)
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It is well known that the data transport capacity of a wireless network can be increased by leveraging the spatial and frequency diversity of the wireless transmission medium. This has motivated the recent surge of research in cooperative and dynamic-spectrum-access networks. Still, as of today, a key open research challenge is to design distributed control strategies to dynamically jointly assign (i) portions of the spectrum and (ii) cooperative relays to different traffic sessions to maximize the resulting network-wide data rate. In this article, we make a significant contribution in this direction. First, we mathematically formulate the problem of joint spectrum management and relay selection for a set of sessions concurrently utilizing an interference-limited infrastructure-less wireless network. We then study distributed solutions to this (nonlinear and nonconvex) problem. The overall problem is separated into two subproblems, (i) spectrum management through power allocation with given relay selection strategy, and (ii) relay selection for a given spectral profile. Distributed solutions for each of the two subproblems are proposed, which are then analyzed based on notions from variational inequality (VI) theory. The distributed algorithms can be proven to converge, under certain conditions, to VI solutions, which are also Nash equilibrium (NE) solutions of the equivalent NE problems. A distributed algorithm based on iterative solution of the two subproblems is then designed. Performance and price of anarchy of the distributed algorithm are then studied by comparing it to the globally optimal solution obtained with a centralized algorithm. Simulation results show that the proposed distributed algorithm achieves performance that is within a few percentage points of the optimal solution.