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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium



Cross-Layer Interaction Between the Application, Routing and MAC Layers for Wireless Sensor Networks

This paper proposes a network protocol that relies on cross-layer interaction between the Medium Access Control (MAC), Network and Application layers for w...

SBrT 2010


Hardware-Friendly Implementation of Soft Information Set Decoders

This article has two main purposes: (i) to introduce and evaluate a modified version of the Dorsch soft decoding algorithm for block codes, based on inform...

SBrT 2010


Modulations for Large Signal Constellations Coming from Embedding of Complete Graph

The integrated system of data transmission, encoding, modulation and block channels are projected in dependent ways with the purpose of getting an integrate...

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...

SBrT 2010


An Application Server Approach for Number Portability in IMS networks

Number portability (NP) is an important requirement present in most telephony networks. Typically, NP is regulated by local legislation and is inherently a...

SBrT 2010