Search Results - "Fernandes, C. Alexandre R."

Design of Optical Logic Gates Using Mach-Zehnder Interferometers and Machine Learning by Fernandes, C. Alexandre R., de Oliveira, Manoel E. N., Rocha, Danilo S., de Alexandria, Auzuir R., Guimaraes, Glendo F.

“…In the present work, a technique for designing all-optical logic gates from a Mach-Zehnder Interferometer (MZI) using machine learning (ML) is presented. The…”
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Multiuser Cooperative OFDMA Uplink With Nonlinear Power Amplifiers: Theoretical Characterization and Resource Allocation by Magalhaes, Syllas R. C., Fernandes, C. Alexandre R., Teles, Livia C. S.

“…In this work, a resource allocation problem is investigated for a relay-based multiuser cooperative orthogonal frequency division multiple access (OFDMA)…”
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Doubly coupled nested tensor decompositions with application to multirelay multicarrier MIMO communication networks by Rocha, Danilo S., Fernandes, C. Alexandre R., Favier, Gérard

“…Coupled tensor decompositions have emerged as a promising approach to analyze large dimensional datasets in the context of signal processing applications. In…”
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Nested Tucker tensor decomposition with application to MIMO relay systems using tensor space–time coding (TSTC) by Favier, Gérard, Fernandes, C. Alexandre R., de Almeida, André L.F.

“…The aim of this paper is twofold. In a first part, we present a new tensor decomposition that we call Tucker train decomposition or nested Tucker decomposition…”
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MIMO multi-relay systems with tensor space-time coding based on coupled nested Tucker decomposition by Rocha, Danilo S., Fernandes, C. Alexandre R., Favier, Gérard

“…In this paper, we propose a two-hop MIMO multi-relay system with tensor space-time coding (TSTC) at the source and the relays. The multiple relays use…”
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Tensor coding for three-hop MIMO relay systems by Rocha, Danilo S., Favier, Gerard, Fernandes, C. Alexandre R.

“…A three-hop AF MIMO relay system with tensor coding at the source and the relays is considered in this paper. The signals received at destination form a…”
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Space-Time-Frequency (STF) MIMO Relaying System with Receiver Based on Coupled Tensor Decompositions by Rocha, Danilo S., Fernandes, C. Alexandre R., Favier, Gerard

“…In this work, we present a two-hop OFDM MIMO relaying system with tensor codings at the source and the relay. The transmission scheme is composed of two steps…”
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Outage and SER analysis of DF cooperative OFDM systems with nonlinear power amplifiers by Sousa, Diego A., Fernandes, C. Alexandre R., Fernandes, C. Estêvão R.

“…In this paper, a performance analysis of decode-and-forward (DF) cooperative OFDM systems is presented by considering the nonlinear distortions inserted by PAs…”
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Classification of Hand Movements from EMG Signals for People with Motor Disabilities by Francisco, dos Santos, Flavio, dos Santos, C. Alexandre, C. Alexandre

“…People with disabilities correspond to about 25% of the Brazilian population. A great part of these people have physical impairments that difficult the use…”
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Outage analysis of AF OFDM relaying systems with power amplifier nonlinearity by Silva, Silas L., Fernandes, C. Alexandre R.

“…The high peak-to-average power ratio (PAPR) is one of the main problems of orthogonal frequency division multiplexing (OFDM), which may cause the introduction…”
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Outage performance of cooperative amplify-and-forward OFDM systems with nonlinear power amplifiers by Alexandre, C., Fernandes, R.

“…Cooperative diversity and orthogonal frequency division multiplexing (OFDM) are two key technologies for future wireless communication systems. One of the main…”
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