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Sociedade Brasileira de Telecomunicações


Modulations for Large Signal Constellations Coming from Embedding of Complete Graph

The integrated system of data transmission, encoding, modulation and block channels are projected in dependent ways with the purpose of getting an integrate...

SBrT 2010


Rounded Patch Antenna with T-Shaped Probe Feeding and Shorted Wall

In this work, a modified patch antenna with broad bandwidth and small size is proposed and investigated. Instead of rectangular patch of a known antenna we...

SBrT 2010


Applying Markov chains to calculate the probability of saturation in digital IIR filters

We propose a new method to model the effect of finite-precision arithmetic in infinite impulse response (IIR) digital filters. As an application, we use th...

SBrT 2010


Evaluation of the Effects of the Co-Channel Interference on the Bit Error Rate of Cellular Systems for BPSK Modulation

A performance analysis in terms of the bit error rate for digital systems with co-channel interference is done. In order to evaluate the effects of the int...

SBrT 2010


Assessing Strategies to Remove Back-to-Front Interference in Color Documents

Whenever a document is written on both sides of translucent paper there is a back-to-front interference, also known as bleeding or show-through. In the lit...

SBrT 2010