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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium

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

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

Close Approximations for Daublets and their Spectra

This paper offers a new regard on compactly supported wavelets derived from FIR filters. Although being continuous wavelets, analytical formulation are lac...

SBrT 2010

Facial Landmarks Detection Based on Correlation Filters

The problem of locating facial landmarks is important in many applications such as security, 3D modeling and expression recognition. In this paper, we prese...

SBrT 2010

Average Throughput Link Adaptation using HARQ Information and MIMO Systems

In this article, we discuss about link adaptation (LA) for multiple-input multiple-output (MIMO) wireless systems. We present a cross-layer approach that t...

SBrT 2010