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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium

A complex version of the LASSO algorithm and its application to beamforming

Least Absolute Shrinkage and Selection Operator (LASSO) is a useful method to achieve coefficient shrinkage and data selection simultaneously. The central ...

SBrT 2010

Analysis of multi-homed SCTP and delay-centric transmission for VoIP traffic in lossy networks

Nowadays a number of Internet access possibilities can be simultaneously available to fixed or mobile users. Adequate selection of the most appropriate comm...

SBrT 2010

Correcting Erasures and Errors in Random Network Coding

Rank-metric codes in matrix representation are used by Koetter, Kschischang, Silva in their theory of random network coding. They showed that the decoding pr...

SBrT 2010

Ambient Noise Classification for Automatic Speaker Identification

This paper proposes two methods for acoustic ambient noises classification. The classification is based on the Kurtosis coefficient and the Bhattacharyya d...

SBrT 2010

Vertical Handoff Algorithms for Heterogeneous 3G Networks

One of main challenges of fourth generation wireless networks (4G) will be the integration of various mobile technologies such as CDMA 1xEV-DO RA, UMTS/HSDP...

SBrT 2010