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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium



Trust Management for Survivable Communication on Self-Organized Wireless Networks

Self-organized wireless networks comprise different devices cooperating among themselves to provide network services. These networks support critical applic...

SBrT 2010


Capacity Issues for Cognitive Radio Systems

The development of software radio toward the cognitive radio brought the hope that the spectrum scarcity would be finally an issue of the past. Due to the ...

SBrT 2010


On the Effectiveness of Dynamic Spectrum Management Algorithms in xDSL Networks

This work proposes a method for the evaluation of the effectiveness of adopting dynamic spectral management (DSM) algorithms in different DSL scenarios. In...

SBrT 2010


SUI Propagation Model Tuning from Collected Data in Fixed Wireless Systems at Arboreous Environments on 5.8 GHz Band

This paper presents an tuning in SUI Propagation Model through the least squares algorithm. Data measurements were carried out in arboreous environments, i...

SBrT 2010


Reduced Complexity Viterbi Decoding Based on the M-Algorithm and the Minimal

In this paper we propose sub-optimum, reduced complexity decoding algorithms for convolutional codes. The algorithms are based on the minimal trellis repre...

SBrT 2010