FCT: DEE - Outros
URI permanente para esta coleção:
Navegar
Entradas recentes
- Correction to: Predictive Manufacturing:Publication . Pulikottil, Terrin Babu; Jimenez, Luis Alberto Estrada; Nikghadam-Hojjati, Sanaz; Barata, José; DEE - Departamento de Engenharia Electrotécnica e de Computadores; CTS - Centro de Tecnologia e Sistemas; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; DEE2010-C2 Robótica e Manufactura Integrada por Computador
- PrefacePublication . Camarinha-Matos, Luís M.; Ortiz, Angel; Boucher, Xavier; Osório, A. Luís; DEE - Departamento de Engenharia Electrotécnica e de Computadores
- Editorial for special issue “fractional behavior in nature 2019”Publication . Ortigueira, Manuel Duarte; CTS - Centro de Tecnologia e Sistemas; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-B2 Sistemas; MDPI - Multidisciplinary Digital Publishing Institute
- Performance analysis of NOMA in 5G systems with HPA nonlinearitiesPublication . Haj Belkacem, Oussama Ben; Ammari, Mohamed Lassaad; DInis, Rui; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-A1 Telecomunicações; Institute of Electrical and Electronics Engineers (IEEE)In this paper, we provide an analytical performance assessment of downlink non-orthogonal multiple access (NOMA) systems over Nakagami-m fading channels in the presence of nonlinear high-power amplifiers (HPAs). By modeling the distortion of the HPA by a nonlinear polynomial model, we evaluate the performance the NOMA scheme in terms of outage probability (OP) and ergodic sum rate. Hence, we derive a new closed-form expression for the exact OP, taking into account the undesirable effects of HPA. Furthermore, to characterize the diversity order of the considered system, the asymptotic OP in the high signal-to-noise (SNR) regime is derived. Moreover, the ergodic sum rate is investigated, resulting in new upper and lower bounds. Our numerical results demonstrate that the performance loss in presence of nonlinear distortions is very substantial at high data rates. In particular, it is proved that in presence of HPA distortion, the ergodic sum rate cannot exceed a determined threshold which limits its performance compared to the ideal hardware case. Monte-Carlo simulations are conducted and their results agree well with the analytical results.
- Interoperability enablers for cyber-physical enterprise systemsPublication . Jardim-Gonçalves, Ricardo; Romero, David; Goncalves, Diogo; Mendonça, João Pedro; DEE2010-C1 Sistemas Digitais e Percepcionais; CTS - Centro de Tecnologia e Sistemas; DEE - Departamento de Engenharia Electrotécnica e de Computadores; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; Taylor & Francis
- Special Issue on Recent Advances in Petri Nets, Automata, and Discrete-Event Hybrid SystemsPublication . Wisniewski, Remigiusz; Zhou, Mengchu; Gomes, Luis; Fanti, Maria Pia; Kumar, Ratnesh; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-C1 Sistemas Digitais e Percepcionais; IEEE Advancing Technology for Humanity
- Corrigendum: “Novel Big Data-supported dynamic toll charging system: Impact assessment on Portugal's shadow-toll highways” (Computers & Industrial Engineering (2019) 135 (476–491), (S0360835219303742), (10.1016/j.cie.2019.06.043))Publication . Figueiras, Paulo; Gonçalves, Diogo; Costa, Ruben; Guerreiro, Guilherme; Georgakis, Panos; Jardim-Gonçalves, Ricardo; Tsirimpa, Athena; Polydoropoulou, Amalia; Tsouros, Ioannis; Pagoni, Ioanna; CTS - Centro de Tecnologia e Sistemas; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-C1 Sistemas Digitais e Percepcionais; ElsevierThis corrigendum addresses the issue of deserving authors who were omitted from the publication “Novel Big Data-supported dynamic toll charging system: Impact assessment on Portugal's shadow-toll highways”. Athena Tsirimpa, Amalia Polydoropoulou, Ioannis Tsouros and Ioanna Pagoni are added as co-authors due to their contributions on the OPTIMUM Deliverable 4.6 Dynamic Charging and Crediting Model of which part of the aforementioned publication is based on. The authors are updated as above. The authors would like to apologise for any inconvenience caused.
- Welcome to CPE-POWERENG 2020Publication . Martins, João; Fernão-Pires, Vitor; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-B1 Energia; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; CTS - Centro de Tecnologia e Sistemas
- Welcome to YEF ECE 2020Publication . Camarinha-Matos, Luis; Martins, João; DEE - Departamento de Engenharia Electrotécnica e de Computadores; UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias; CTS - Centro de Tecnologia e Sistemas; DEE2010-C2 Robótica e Manufactura Integrada por Computador; DEE2010-B1 Energia
- IEEE Access Special Section: Cyber-Physical SystemsPublication . Wiśniewski, Remigiusz; Benysek, Grzegorz; Gomes, Luis; Kania, Dariusz; Simos, Theodore; Zhou, Mengchu; DEE - Departamento de Engenharia Electrotécnica e de Computadores; DEE2010-C1 Sistemas Digitais e Percepcionais; Institute of Electrical and Electronics Engineers (IEEE)