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Sociedade Brasileira de Telecomunicações


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


Nonlinear Binary Codes Derived from Constacyclic Codes

This paper presents theorems showing how to obtain a binary nonlinear code from a p-ary linear constacyclic maximum distance separable code, where p is a pr...

SBrT 2010


OFDM Point-to-Multipoint Links at ISM 5 GHz Band: Experimental and Analytical Results

It is developed a case study, unifying theoretical and practical aspects, concerning planning and implementation of orthogonal frequency division multiplex...

SBrT 2010


Comparison of the Performance of Rain Attenuation Prediction Methods for Terrestrial Links

This paper presents the results of a comparative tests between rain attenuation prediction methods for terrestrial links. To perform the tests, experimenta...

SBrT 2010


User Cooperation Using Multiple Antennas

This paper proposes user cooperation strategy using multiple antennas technology (MIMO). In a first model we used a Code Division Multiple Access (CDMA) sy...

SBrT 2010