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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium



On the Impact of Non-Linear High Power Amplifiers on Coded OFDM

The high peak-to-average power ratio (PAPR) is one of the main disadvantages of OFDM systems, which reduces the transmission efficiency with non-linear pow...

SBrT 2010


On the Use of Precoding in FBMC/OQAM Systems

Linear precoding can be applied to multicarrier systems to minimize the effect that a deep fade in one of the subchannels can have on the overall bit error...

SBrT 2010


Optical Amplitude Multiplexing through Parametric Amplification: An Analysis for the Idler Signal

Recently a new technique that used parametric amplification in optical fibers to combine two binary signals into a single quaternary amplitude-shift keyin...

SBrT 2010


Optimal Policy for Initial Selection Radio Access Technology in Next Generation Wireless Networks

In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (R...

SBrT 2010


Optimized Blind Algorithms for Widely Linear Beamforming

The use of array beamforming in modern wireless communication systems has been increasingly investigated, due to their potential in rejecting interference ...

SBrT 2010