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- W2012338356 abstract "In this paper, the problem of the coexistence of two multiple-antenna wireless links is addressed in a cognitive radio scenario. The novelty brought by our setup is three-fold: First we consider a more realistic rate target constraint at the primary receiver instead of the less meaningful maximum interference temperature, second we propose a limited channel state information (CSI) structure whereby transmitters only have access to partly instantaneous feedback (i.e., about the direct channels) and partly statistical feedback (i.e., about the interference channels). Third, we formulate a distributed decision making scenario, by which channel information is not shared among primary and secondary transmitters. Instead, a transmitter must make a precoding decision based on local CSI only. The problem is recast as a team decision theoretic problem and the optimal precoders are obtained by solving semidefinite programs (SDPs). A distributed algorithm is derived and compared with classical precoding solutions and gains are illustrated over a range of scenarios." @default.
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- W2012338356 date "2013-09-01" @default.
- W2012338356 modified "2023-10-03" @default.
- W2012338356 title "A team decisional beamforming approach for underlay cognitive radio networks" @default.
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- W2012338356 doi "https://doi.org/10.1109/pimrc.2013.6666202" @default.
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