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Sociedade Brasileira de Telecomunicações


User Cooperation Using Multiple Antennas

This paper proposes user cooperation strategy using multiple antennas technology (MIMO). In a first model we used a Code Division Multiple Access (CDMA) sy...

SBrT 2010


Comparison of the Performance of Rain Attenuation Prediction Methods for Terrestrial Links

This paper presents the results of a comparative tests between rain attenuation prediction methods for terrestrial links. To perform the tests, experimenta...

SBrT 2010


Modelling Power Consumption in IEEE 802.16e WiMAX Mobile Nodes

Energy availability is the main delimiter for usage time of mobile devices. As wireless network interfaces are usually the most power-demanding subsystem ...

SBrT 2010


Analysing on the Quality of Head Tomographic Images with Power Intensity Variation

Tomography is a non-invasive exam technique that provides a great amount of visual information of virtually inaccessible areas of the body. This paper anal...

SBrT 2010


Blind Source Separation in Polarization Division Multiplexed Optical Systems

Polarization division multiplexing systems is a promising technique, able to double the capacity of next generation optical communication systems. However,...

SBrT 2010