Abstract
The rising energy costs and carbon footprint of operating cellular networks have led to a trend in addressing energy-efficiency amongst the network operators and regulatory bodies such as 3GPP and ITU. "Greening" the wireless networks is a vast research discipline that needs to cover all the layers of the protocol stack and various system architectures and it is important to identify the fundamental trade-offs linked with energy efficiency and the overall performance. In this talk, we identify four important aspects of a green networking where we would like to focus: defining green metrics, bringing architectural changes in base stations, network planning, and efficient system design. We begin with a brief discussion on energy efficiency metrics. Since Base Stations (BSs) consume a major chunk of input energy, we discuss the energy efficiency of BSs. Next we discuss energy efficiency from a network planning perspective, based on smaller cells for heterogeneous networks. For system design, we put a special emphasis on cognitive and cooperative techniques in order to realize energy efficient cellular systems. Finally we discuss some broader perspectives and possible future trends in realizing a green cellular network technology.
Presentation of Nagoya University IAR by Dapeng Cai and Susumu Saito
Expositores:
Dapeng Cai (Instituto de Pesquisa Avançada da Universidade de Nagoya, Japão) e
Susumu Saito (Instituto de Pesquisa Avançada da Universidade de Nagoya, Japão)
Data do Evento: 15 de Fevereiro de 2013
Local: Sala de Eventos do IEA, Rua Praça do Relógio, 109
2 SEMESTRE 2018
INSTITUTO DE QUÍMICA - USP (BLOCO 6, SALA 8)
SEXTAS-FEIRAS, 14-16H
Date
Seminar
August
17/08
The Chemical Industry in the Low Carbon Economy
Paulo Coutinho (SENAI)
24/08
Sugarcane adaptations to a rhythmic world
Carlos T. Hotta (Instituto de Química, USP)
31/08
Green chemistry in bioenergy
Pedro Vidinha (Instituto de Química, USP)
September
14/09
Bioenergy & Sustainability: Latin America and Africa
Glaucia Mendes Souza (Instituto de Química, USP)
21/09
Biogas and biomethane: current status and opportunities
Suani Teixeira Coelho (Instituto de Energia e Ambiente, USP)
28/09
Biofuels and biodiversity: challenges and opportunities
Luciano Martins Verdade (Centro de Energia Nuclear na Agricultura, USP)
October
05/10
Lyfe cycle analysis in bioenergy
Joaquim E. A. Seabra (Faculdade de Engenharia Mecânica, UNICAMP)
19/10
Modulation of free-energy conservation in yeast for improved biorefineries
Andreas Karoly Gombert (Faculdade de Engenharia de Alimentos, UNICAMP)
26/10
Genetic mapping in autopolyploids, with applications in sugarcane
Antonio Augusto Franco Garcia (Escola Superior de Agricultura Luiz de Queiroz, USP)
John E. Hopcroft (Cornell University), um dos pioneiros da área de
ciência da computação, proferiu no IME/USP a palestra "Future
directions in computer science research", que versou sobre sua visão
do futuro da área, que encontra-se em profunda transformação com a
confluência da computação e comunicação, a emergência das redes
sociais e a grande massa de informação disponível em forma digital, e
a conseqüente mudança de foco da pesquisa na área para a investigação
da estrutura de redes e a extração de informação de grandes volumes de
dados.
Hopcroft é amplamente conhecido tanto pelos seus trabalhos de
pesquisa, como pelas suas monografias clássicas sobre algoritmos,
linguagens formais e autômatos, que moldaram a área de ciência da
computação em sua fase formativa nas décadas de 60 e 70. Hopcroft,
membro da National Academy of Sciences (NAS), do National Academy of
Engineering (NAE) e Fellow da American Academy of Arts and Sciences
(AAAS) e da American Association for the Advancement of Science,
recebeu o A. M. Turing Award em 1986, o IEEE Harry H. Goode Memorial
Award em 2005 e o IEEE John von Neumann Medal em 2010.
Enabled by pervasive wireless networking and ultra-low power technologies, so-called nanomorphic systems are now moving into the domain of the feasible. Sub-mm integrated wireless sensor nodes make it possible to directly observe and interact with biological cells in-vivo, opening the door for a broad range of applications in the domains of healthcare and well being. One application of particular interest is the domain of brain-machine interfaces, where sensor nodes directly observe neural activity in the brain, and use this information to restore function for people with severe neural disabilities such as stroke, spinal cord injury, ALS, epilepsy, etc. In this presentation, we will explore some of the ultimate bounds in miniaturization and energy reduction. We will focus on the realization of so called “neural swarms” – networks that exist in and around the human body to provide user-machine interfaces that are far more advanced that what we have today. The progress will be documented with results from our research group in the Berkeley Wireless Research Center, focusing on the realization of complete brain-machine interfaces.
Biography – Jan M. Rabaey
Site: http://bwrcs.eecs.berkeley.edu/faculty/jan/JansSite/Home.html
Jan Rabaey received his Ph.D degree in applied sciences from the Katholieke Universiteit Leuven, Belgium. After being connected to UC Berkeley as a Visiting Research Engineer, he was a research manager at IMEC, Belgium. In 1987, he joined the faculty of the Electrical Engineering and Computer Science department of the University of California, Berkeley, where he now holds the Donald O. Pederson Distinguished Professorship. He is currently the scientific co-director of the Berkeley Wireless Research Center (BWRC), as well as the director of the Berkeley Ubiquitous SwarmLab and the multi-university Multiscale Systems Research Center (MuSyC). He is the recipient of a wide range of awards, amongst which the IEEE CAS Society Mac Van Valkenburg Award, the European Design Automation Association
China's international energy strategy - Philip Andrew-Speed - Centre for Energy, Petroleum and Mineral Law and Policy, University of Dundee - Local: Congregando as instituições: Universidade de Coimbra, Portugal; Universidade de Dundee, Escócia; Universidade de São Paulo, Brasil.
Resumo: Série de conferências para discutir temáticas contemporâneas de Geopolíticas Energética com a participação de professores do Center for Energy, Petroleum and Mineral Law and Policy da Universidade de Dundee, Escócia Contato: No Brasil - Prof. Edmilson Moutinho dos Santos
PANEL 1: NEW DIGITAL TECHNOLOGIES AND AUDIOVISUAL PRODUCTION. Date: September/10th, 2008. Nenad Puhovski, Carlos Ebert, Frank Chindamo, João Guilherme Barone.
