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Sociedade Brasileira de Telecomunicações

2012 - XXX Simpósio Brasileiro de Telecomunicações



Strong Self-Phase Modulation in Data Erasing Beyond 20 Gb/s Using Saturated Ultra-Long SOA

Optical data extinction using ultra-long SOA is evaluated up to 56 Gb/s. The analysis of the deleterious effects such as spectral broadening and imperfect ...

SBrT 2012


Space-time codes based on quaternion algebras of small volume

We have seen in [13] a new reduction method for the decoding of 2×2 algebraic space-time codes, called algebraic reduction as been introduced. Algebraic co...

SBrT 2012


Metaheurísticas Aplicadas a Gerência de Recursos de Rádio em Redes Multi-Acesso 4G

As redes de comunicações sem fio estão se tornando mais heterogêneas tanto em termos tecnológicos como em modelos de negócios das operadoras. Essa tendênci...

SBrT 2012


Performance evaluation of QoS in wireless networks using IEEE 802.11e

The increase demand for Quality of Service (QoS) in computer networks and the recent popularization of wireless networks required a standard to bring QoS to ...

SBrT 2012


Adjustments of Log-Distance Path Loss Model for Digital Television in Lima

it is necessary to perform a proper planning for an efficient deployment of new infrastructure for transmission of digital television in countries that hav...

SBrT 2012