A Traffic Policing Mechanism for Wimax Systems Based on Multifractal Modeling
In this paper, we analyze the queueing performance in terms of loss rate of an OFDM (Orthogonal FrequencyDivision Multiplexing)/TDMA(Time Division Multiplex...
- Josemar A. Santos Jr
- Flávio G. C. Rocha
- Flávio H. T. Vieira
- Multifractal Traffic
- IEEE 802.16
- Policing algorithms
- Wireless Traffic
SBrT 2010
Rank codes – the State of Art
The State of Art for rank codes is presented. The theory and applications are considered.
- Ernst M. Gabidulin
- rank metric
- matrix rank code
- vector rank code
- random rank error
- rank row erasure
- rank column erasure
- fast decoding algorithm
- space-time code
- network coding
- public-key cryptography
SBrT 2010
A New Model for VoIP Traffic Generation
In this work a new model for VoIP traffic generation is proposed. The innovation of this model consists in modeling the user behavior instead of the aggreg...
- Carlos Ignacio de Mattos
- Eduardo Parente Ribeiro
- Carlos Marcelo Pedroso
- Traffic Models
- Voice over IP
- Voice Codecs
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
Providing Higher Entropy Cryptographic Keys by the Use of Biometrics
In this paper modifications are investigated to a previously introduced Key Regeneration system used to obtain cryptographic keys from biometric data, spec...
- D. P. B. A. Camara
- V. C. da Rocha Jr.
- Biometrics
- cryptography
- error-correcting codes
- security
SBrT 2010