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Sociedade Brasileira de Telecomunicações


Nanophotonics in Modern Communication Systems – Feasibility of Plasmon-Polariton Waveguides in Optical Networks

Use of surface-plasmons-polaritons has become a potential way to develop optical components below the diffraction limit. This paper reports the feasibility...

SBrT 2010


A ew Multifractal Traffic Model and Its Impacts on Buffer Queueing Performances

In this paper, we propose a new analytical expression for estimating byte loss probability at a single server queue with multi-scale traffic arrivals using...

SBrT 2010


Fiber Bragg Grating Compression-based Tuning Device for Reconfigurable OADM

In this work a fast Bragg grating-based tuning device, working according to the mechanical compression of the fiber, is demonstrated. The device achieves a...

SBrT 2010


Hyperbolic lattices: a new propose for space time coding theory

In the context of space-time block codes (STBCs), the theory of hyperbolic lattices over totally real number field is presented, as well as theoretic crit...

SBrT 2010


Evaluation of the Effects of Co-Channel Interference on the Bit Error Rate for QPSK and M-QAM Modulations

In this paper, a performance analysis for QPSK, 16- QAM and 64-QAM, modulations in the presence of co-channel interference is made. At first, an expression...

SBrT 2010