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Sociedade Brasileira de Telecomunicações


Impact Evaluation of Imperfect Channel State Information on the Performance of Downlink CoMP Systems

Coordinated Multi-Point (CoMP) systems promise very high performance in terms of spectral efficiency and coverage benefits when perfect Channel State Infor...

SBrT 2011


Performance of Different Utility Functions in Pricing Algorithms for Interference Alignment

A ideia básica do alinhamento de interferência consiste em pré-codificar os sinais transmitidos de tal maneira que eles estejam alinhados nos receptores em...

SBrT 2011


Block Diagonalization For Multicell Multiuser MIMO Systems with Other-Cell Interference

We consider the Block Diagonalization (BD) approach assuming multicell multiuser Multiple- Input Multiple-Output (MIMO) systems. For such systems, convent...

SBrT 2016


Interference management and antenna downtilt in multi-antenna CoMP systems

Long Term Evolution (LTE)-Advanced has regarded both Coordinated Multi-Point (CoMP) and Multiple Input Multiple Output (MIMO) technologies as an efficient ...

SBrT 2012


A Performance Analysis of ADMM Applied to Coordinated Beamforming

This paper presents a performance analysis for a centralized solution to the Coordinated Beamforming Optimization Problem (CBOP), that uses an Alternating Di...

SBrT 2017