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Sociedade Brasileira de Telecomunicações

2011 - XXIX Simpósio Brasileiro de Telecomunicações



Analysis of Phase Recovery Algorithms for DP-QPSK Optical Receivers

This paper compares the performance of phase re- covery techniques for optical dual-polarization quadrature phase- shift keying (DP-QPSK) coherent receiver...

SBrT 2011


Analyzing the behavior of a new Joint Radio Resource Management Strategy

Este artigo estuda uma nova estratégia de gestão de recursos de rádio em face a dois cenários com diferentes tipos de tráfego. Um cenário considera somente...

SBrT 2011


A Novel Restoration Algorithm Based on Optical Signal-to-Noise Ratio for Transparent Optical Networks

In this paper, we propose a novel algorithm to restore calls upon a single failure in transparent optical net- works. After a failure, the proposed algorit...

SBrT 2011


Antenna array optimization for channel model using spherical harmonics decomposition

This paper addresses the optimization antenna arrays. For this purpose, we use a recent channel model based on the use of spherical harmonics, which allows...

SBrT 2011


A Pedometer-Based System for Real-time Indoor Tracking on Mobile Devices

This paper describes the implementation and evaluation of a low-cost solution for real-time indoor tracking. It is based on a simple pedometer approach tha...

SBrT 2011