Matrix analysis
Convex Optimization
Optimizations of a MIMO Relay Network
IEEE Transactions on Signal Processing - Part II
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Sum-capacity computation for the Gaussian vector broadcast channel via dual decomposition
IEEE Transactions on Information Theory
A tutorial on decomposition methods for network utility maximization
IEEE Journal on Selected Areas in Communications
SNR maximization and distributed beamforming in multiuser multi-relay networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Distributed beamforming in multiuser multi-relay networks with guaranteed QoS
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Mobile Networks and Applications
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This paper considers power allocation and distributed beam-forming optimization in a multiuser multi-relay network. Under the constraint on the total relay power, we investigate two resource allocation problems, namely the sum-rate maximization and minimum-rate maximization. Although both problems are not readily expressed in a convex form, a change in variables transforms the problems into standard optimization problems, which then can be solved efficiently. In addition, via dual decomposition, two algorithms are proposed to solve the two problems in a distributed fashion.