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Presentation

Telecommunications and Multimedia

At CTM, our vision is to promote a lively and sustainable world where networked intelligence enables ubiquitous interaction with sensory-rich content. Our mission is to develop advanced systems and technologies to enable high capacity, efficient, and secure communications, media knowledge extraction, and immersive ubiquitous multimedia applications.

We work in 4 main areas of research: Optical and Electronic Technologies, Wireless Networks, Multimedia and Communications Technologies, and Information Processing and Pattern Recognition.

Latest News
Networked Intelligent Systems

INESC TEC article is the third most viewed in 2018 of the PeerJ Computer Science

Kelwin Fernandes and Jaime Cardoso, researcher and coordinator of INESC TEC’s Centre for Telecommunications and Multimedia (CTM), respectively, alongside Jessica Fernandez and Davide Chicco are the authors of the third most viewed and downloaded article of the PeerJ Computer Science journal in 2018.

23rd January 2019

Networked Intelligent Systems

Internet for ships in high seas has signature of INESC TEC

Broadband and low cost wireless communications for ships – this was the major outcome achieved by the MareCom project, which had the participation of INESC TEC, Wavecom, Portuguese Navy Research Center (CINAV) and Ubiwhere.

06th November 2018

Networked Intelligent Systems

FotoInMotion selected as Tech Project for the Vertigo Starts Residency

The European FotoInMotion project, in which INESC TEC’s Centre for Telecommunications and Multimedia (CTM) participates, was selected as Tech Project for the Vertigo STARTS Residencies and is now looking for artists for a residency in the Worldcrunch in Paris.

19th October 2018

Networked Intelligent Systems

INESC TEC’s researchers receive Best Paper Award in Poland

The researchers of INESC TEC’s Centre for Telecommunications and Multimedia (CTM), José Pedro Pinto and Paula Viana received the Best Paper Award at the “MISSI 2018: 11th edition of the International Conference on Multimedia and Network Information System”, which took place in Wroclaw, Poland, between 12 and 14 September.

28th September 2018

Networked Intelligent Systems

Project ENDURANCE charges underwater sensors through wireless

A team of researchers from INESC TEC’s Centre for Telecommunications and Multimedia (CTM) and Centre for Robotics and Autonomous Systems (CRAS) is developing a technology “that allows autonomous underwater vehicles (AUVs) to approach underwater sensors without battery, energising them and collecting data".

13th August 2018

Interest Topics
006

Featured Projects

Blueenergy

Blue energy generation using hybrid triboelectric/photovoltaic systems for the long term deployment of Autonomous Underwater Vehicles

2018-2019

Arquitetura_IoT

Consultoria sobre a arquitetura de referência para implementação serviços de informação baseados em IoT

2017-2018

TEC4SEA

Modular Platform for Research, Test and Validation of Technologies supporting a Sustainable Blue Economy

2017-2020

ROMOVI

ROMOVI: Robô Modular e cooperativo para Vinhas de encosta

2017-2019

CORAL-TOOLS

CORAL – Sustainable Ocean Exploitation: Tools and Sensors

2016-2018

VAMOS

Viable Alternative Mine Operating System

2015-2019

Team
002

Laboratories

Laboratory of Sound and Music Computing

Optical and Electronic Technologies Research Laboratory

Publications

CTM Publications

View all Publications

2018

BMOG: boosted Gaussian Mixture Model with controlled complexity for background subtraction

Authors
Martins, I; Carvalho, P; Corte Real, L; Alba Castro, JL;

Publication
Pattern Analysis and Applications

Abstract

2018

Experimental Evaluation of Resonant Tunnelling Diode Oscillators Employing Advanced Modulation Formats

Authors
Tavares, JS; Pessoa, LM; Salgado, HM;

Publication
International Conference on Transparent Optical Networks

Abstract
The performance of Resonant Tunnelling Diode (RTD) oscillators with an optical window is evaluated experimentally, in the transmission of advanced modulation formats using electrical and optical modulation, for the first time. Additionally, the impact of phase noise in the transmission performance is also assessed. © 2018 IEEE.

2018

An FPGA array for cellular genetic algorithms: Application to the minimum energy broadcast problem

Authors
dos Santos, PV; Alves, JC; Ferreira, JC;

Publication
Microprocessors and Microsystems

Abstract
The genetic algorithm is a general purpose optimization metaheuristic for solving complex optimization problems. Because the algorithm usually requires a large number of iterations to evolve a population of solutions to good final solutions, it normally exhibits long execution times, especially if running on low-performance conventional processors. In this work, we present a scalable computing array to parallelize and accelerate the execution of cellular GAs (cGAs). This is a variant of genetic algorithms which can conveniently exploit the coarse-grain parallelism afforded by custom parallel processing. The proposed architecture targets Xilinx FPGAs and was implemented as an auxiliary processor of an embedded soft-core CPU (MicroBlaze). To facilitate the customization for different optimization problems, a high-level synthesis design flow is proposed where the problem-dependent operations are specified in C++ and synthesised to custom hardware, thus demanding of the programmer only minimal knowledge of low-level digital design for FPGAs. To demonstrate the efficiency of the array processor architecture and the effectiveness of the design methodology, the development of a hardware solver for the minimum energy broadcast problem in wireless ad hoc networks is employed as a use case. Implementation results for a Virtex-6 FPGA show significant speedups, especially when comparing to embedded processors used in current FPGA devices. © 2018

2018

A parallel-pipelined OFDM baseband modulator with dynamic frequency scaling for 5G systems

Authors
Ferreira, ML; Ferreira, JC; Hübner, M;

Publication
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abstract
5G heterogeneity will cover a huge diversity of use cases, ranging from enhanced-broadband to low-throughput and low-power communications. To address such requirements variety, this paper proposes a parallel-pipelined architecture for an OFDM baseband modulator with clock frequency run-time adaptation through dynamic frequency scaling (DFS). It supports a set of OFDM numerologies recently proposed for 5G communication systems. The parallel-pipelined architecture can achieve high throughputs at low clock frequencies (up to 520.3 MSamples/s at 160 MHz) and DFS allows for the adjustment of baseband processing clock frequency according to immediate throughput demands. The application of DFS increases the system’s power efficiency by allowing power savings up to 62.5%; the resource and latency overhead is negligible. © Springer International Publishing AG, part of Springer Nature 2018.

2018

Flexible and Dynamically Reconfigurable FPGA-Based FS-FBMC Baseband Modulator

Authors
Ferreira, ML; Ferreira, JC;

Publication
2018 IEEE International Symposium on Circuits and Systems (ISCAS)

Abstract

Supervised Theses

2017

Topology Control of Flying Backhaul Mesh Networks

Author
Eduardo Nuno Moreira Soares de Almeida

Institution
UP-FEUP

2017

Driver’s Fatigue State Monitoring using Physiological Signals

Author
Cláudia Sofia Alferes Ribeiro da Silva Silveira

Institution
UP-FEUP

2017

Upper Limb Functional Rehabilitation Using Inertial Sensors

Author
Cristina Ferreira Flores Martins

Institution
UP-FEUP

2017

Rotated Filters and Learning Strategies in Convolutional Neural Networks for Mammographic Lesions Detection

Author
Eduardo Meca Castro

Institution
UP-FEUP

2017

Continuous Biometric Identification on the Steering Wheel

Author
João Tiago Ribeiro Pinto

Institution
UP-FEUP

Facts & Figures

31Papers in indexed journals

2016

47Proceedings in indexed conferences

2016

1225Turnover (k€)

2016

Contacts