Renato Luís Garrido Cavalcante — accepted AI-conference papers

2018

FDD Massive MIMO Channel Spatial Covariance Conversion Using Projection Methods

Lorenzo Miretti, Renato Luís Garrido Cavalcante, Slawomir Stanczak

ICASSP 2018accepted

Knowledge of second-order statistics of channels (e.g. in the form of covariance matrices) is crucial for the acquisition of downlink channel state information (CSI) in massive MIMO systems operating in the frequency division duplexing (FDD) mode. Current MIMO systems usually obtain downlink covaria…

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2018

Spectral Radii of Asymptotic Mappings and the Convergence Speed of the Standard Fixed Point Algorithm

Renato Luís Garrido Cavalcante, Slawomir Stanczak

ICASSP 2018accepted

Important problems in wireless networks can often be solved by computing fixed points of standard or contractive interference mappings, and the conventional fixed point algorithm is widely used for this purpose. Knowing that the mapping used in the algorithm is not only standard but also contractive…

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