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Sociedade Brasileira de Telecomunicações


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


EGPRS2 Deployment as a Resource-saving Feature for Voice

EGPRS2 is part of the GERAN evolution standardized in 3GPP GERAN Release 7 and it allows higher throughput rates per timeslot due to the adoption of higher ...

SBrT 2010


Logical Operations by Pulse Modulation in Nonlinear Directional Coupler

Implementation of logical gates by pulse modulation in nonlinear fiber directional coupler is investigated numerically. We consider pulses from an optical ...

SBrT 2010


Rounded Patch Antenna with T-Shaped Probe Feeding and Shorted Wall

In this work, a modified patch antenna with broad bandwidth and small size is proposed and investigated. Instead of rectangular patch of a known antenna we...

SBrT 2010


Performance comparison between single-carrier and OFDM using the cutoff rate

This article aims to establish a performance comparison between the Single Carrier with Cyclic Prefix (SCCP) and the Orthogonal Frequency Division Multiple...

SBrT 2010