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TCOM
2010
197views more  TCOM 2010»
13 years 8 months ago
Power control for cooperative dynamic spectrum access networks with diverse QoS constraints
Dynamic spectrum access (DSA) is an integral part of cognitive radio technology aiming at efficient management of the available power and bandwidth resources. The present paper d...
Nikolaos Gatsis, Antonio G. Marqués, Georgi...
IJDMBC
2010
115views more  IJDMBC 2010»
13 years 4 months ago
Near Optimum Power Control and Precoding under Fairness Constraints in Network MIMO Systems
Abstract--We consider the problem of setting the uplink signalto-noise-and-interference (SINR) target and allocating transmit powers for mobile stations in multicell spatial multip...
Gábor Fodor, Mikael Johansson, Pablo Soldat...
WIOPT
2010
IEEE
13 years 8 months ago
Low complexity algorithms for relay selection and power control in interference-limited environments
Abstract—We consider an interference-limited wireless network, where multiple source-destination pairs compete for the same pool of relay nodes. In an attempt to maximize the sum...
Lazaros Gkatzikis, Iordanis Koutsopoulos
CORR
2010
Springer
76views Education» more  CORR 2010»
13 years 5 months ago
Power Control with Imperfect Exchanges and Applications to Spectrum Sharing
In various applications, the effect of errors in gradient-based iterations is of particular importance when seeking saddle points of the Lagrangian function associated with constra...
Nikolaos Gatsis, Georgios B. Giannakis
TIT
2011
106views more  TIT 2011»
13 years 5 months ago
Concavity of the Feasible Signal-to-Noise Ratio Region in Power Control Problems
Signal-to-noise (SNR) ratio is commonly regarded as a reliable measure of the performance of wireless communication systems. Knowledge of the fundamental properties of the feasibl...
Wing Shing Wong