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Sociedade Brasileira de Telecomunicações


A General Approach Analysis for Amplify-and-Forward Relaying in Cooperative Diversity Networks

A general approach for analyzing the performance of dual-hop cooperative diversity networks with nonregenerative amplify-and-forward (AF) relays and employ...

SBrT 2012


Aggregate interference from HAPS into FWA systems: A probabilistic approach

This paper presents a probabilistic model to assess the interference produced by HAPS systems into FWA systems operating in the same frequency bands. To av...

SBrT 2017


A Heuristic Approach to Antenna Array Topology Optimization in MIMO Systems

This paper discusses the design of multiple input multiple output (MIMO) antenna systems and proposes a genetic algorithm to obtain the position and orient...

SBrT 2011


A Hybrid Machine Learning Approach for Mobile User Positioning in Cellular Networks

The outstanding growth of location-based services and applications for mobile devices has motivated research about wireless positioning techniques for outd...

SBrT 2017


A influência da variação da impedância de carga no desempenho do monitor de potência óptica para fibra óptica polimérica

Neste trabalho, descrevemos um monitor de potência óptica OPMo de construção simples, compacto e incluindo o uso de um modelo de foto-detector amplamente d...

SBrT 2015