Skip to content

Sociedade Brasileira de Telecomunicações


A Low-Cost Implementation of High-Order Square M-QAM Detection/Demodulation in a FPGA Device

This paper outlines a low-cost technique for detection/demodulation of high-order square M-ary quadrature amplitude modulation (M-QAM), M = 4, 16, 64, 256,...

SBrT 2010


A Robust MERRY Channel Shortening Technique for OFDM Systems in PLC Environment Corrupted by Impulsive Noise

This contribution introduces a robust version of the multicarrier equalization by restoration of redundance (MERY) algorithm for data communication through...

SBrT 2010


A Packet Distribution Traffic Model for Computer Networks

The traditional traffic models which are based on conventional telephone traffic are not suitable for modeling selfsimilar traffic on computer networks. The...

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


An Approach for Solving the Base Station Placement Problem using Particle Swarm Intelligence

A large amount of studies deals with the base station placement problem (BSP), but few studies involve the selection of base stations to meet a set of user...

SBrT 2010