2010 - VII International Telecommunications Symposium
An Innovation-Based Algorithm for Energy Conservation in Multihop Wireless Sensor Networks
We propose an energy-efficient algorithm for sensing a process f(x,y,t) using a multihop Wireless Sensor Network (WSN). The innovation-based algorithm aims ...
- Felipe da Rocha Henriques
- Lisandro Lovisolo
- Marcelo Gonçalves Rubinstein
- Wireless Sensor Networks
- Innovation
- Energy
- Multihop
- Reconstruction
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...
- Fernanda Smith
- Evaldo Pelaes
- Marcio Monteiro
- Boris Dortschy
- Francisco Muller
- Aldebaro Klautau
- Dynamic spectral management
- digital subscriber line
- discrete multitone modulation
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...
- José Carlos M. Bermudez
- Fernando G. Almeida Neto
- Vítor H. Nascimento
- Saturation
- IIR filters
- Markov chains
- finite precision arithmetic
SBrT 2010
Electromagnetic Interference Simulation of a Cell Phone in an Aircraft System Using Domain Decomposition Method
Laboratorial experiments to investigate the behavior of numerous embedded avionics installations to onboard electromagnetic interference (EMI) are extremel...
- Juliano F. Mologni
- Mateus Bonadiman
- Leandro Percebon
- Cesareo L. R. Siqueira
- Marco A. R. Alves
- Filipe Braumgratz
- Edson Fonseca
- Domain Decomposition Method (DDM)
- Electromagnetic coupling
- Electromagnetic Interference (EMI)
- Electromagnetic Compatibility (EMC)
- Finite Element Method (FEM)
- Electromagnetic radiation effects
SBrT 2010
Lossless Multi-Grid Chain Code with Optimized Cell Usage for Contour Description of Visual Objects
In the context of object-based image compression, shape encoders that describe the contour of the objects, called chain codes, tend to be more efficient th...
- Fabiana O. P. Fernandes
- Willian G. de Almeida
- Flávia M. Freitas
- Abraham Alcaim
- shape encoding
- object-based image compression
- MPEG-4
- chain code
- grid cell
SBrT 2010