Browsing by Author "Oliver Riera, Miquel"

Sort by: Order: Results:

  • Sfairopoulou, Anna; Bellalta, Boris; Macián, Carlos; Oliver Riera, Miquel (Springer Verlag, 2010)
    In multi-rate WLANs, users can suffer transmission rate changes due to the link adaptation mechanism. This results in a variable capacity channel, which is very hostile for VoIP and can cause serious quality of service ...
  • Sfairopoulou, Anna (Universitat Pompeu Fabra, 2008-07-28)
    In IEEE 802.11 WLANs, Link Adaptation mechanisms, which choose the transmission rate of each node, provoke unexpected and random variations on the effective channel capacity. When these changes are towards lower bitrates, ...
  • Sánchez Artigas, Marc (Universitat Pompeu Fabra, 2009-01-12)
    En los últimos años, las redes peer-to-peer (P2P) ha experimentado una fuerte expansión. Estos sustratos se constituyen en forma de redes overlay o de recubrimiento que interconectan usuarios de manera lógica y desacoplada ...
  • Cano Bastidas, Cristina (Universitat Pompeu Fabra, 2011-03-04)
    In the last few years Wireless Sensor Networks (WSNs) have become an interesting field of research mainly due to the challenges and constraints of their design and the broad range of potential applications they can provide. ...
  • Cao Minh, Trang (Universitat Pompeu Fabra, 2014-09-25)
    Through advances in sensor, networking, semiconductor and energy storage technologies, Wireless Sensor Networks (WSNs) are increasingly being deployed in many important applications to enable users to access information ...
  • Bellalta, Boris; Daza, Vanesa; Oliver Riera, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    A queueing model for Multi-rate Multi-user MIMO systems is presented. The model is built upon the assumption that the probability distribution of available destinations among the buffered frames at the Base Station (BS) ...
  • Albó, Laia; Hernández Leo, Davinia; Oliver Riera, Miquel (2016)
    Most MOOCs offer open learning opportunities at Higher Education (HE) level./nHowever, it is still unclear how HE students are taking this type of course. This/nstudy focuses on the profile of HE students participating in ...
  • Albó, Laia; Hernández Leo, Davinia; Oliver Riera, Miquel (CEUR Workshop Proceedings, 2015)
    Blended Massive Open Online Courses (bMOOCs) have arisen as a blended learning strategy that combines the use of MOOC platform-supported activities and video-based content with in-class face-to-face activities in Higher ...
  • Della Valle, Fabio; Oliver Riera, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Supply chain management is considered one of the main sectors of development for blockchain technology. This study provides solid contributions to understanding blockchain innovation and presents some main features and ...
  • Barceló Vicens, Jaume (Universitat Pompeu Fabra, 2009-03-20)
    Aquesta tesi suggereix usar un compte enrere determinista després de les transmissions exitoses en les xarxes d'àrea local sense fils. Com que les estacions que han transmès amb èxit en el seu darrer intent no poden ...
  • Oliveira, Thays A.; Oliver Riera, Miquel; Ramalhinho-Lourenço, Helena (MDPI, 2020)
    The way citizens interact with cities affects overall life quality. Their participation in social decisions is of paramount importance for helping on public decisions that affect governance, regulation and education. This ...
  • Sanabria Russo, Luis (Universitat Pompeu Fabra, 2016-10-21)
    Using a deterministic backoff after successful transmissions as a distributed contention mechanism for access to the channel can draw benefits from scheduled operation, like the elimination of simultaneous transmissions, ...
  • Oliveira, Thays Aparecida de (Universitat Pompeu Fabra, 2020-11-26)
    This thesis addresses on research accomplished and published during the last five years on the state-of-the-art about the development on Smart and Digital Cities. The world population has been increasing and conglomerating ...
  • Platt, Steven; Sanabria Russo, Luis; Oliver Riera, Miquel (MDPI, 2020)
    Virtual Network Functions allow the effective separation between hardware and network functionality, a strong paradigm shift from previously tightly integrated monolithic, vendor, and technology dependent deployments. In ...
  • Platt, Steven; Oliver Riera, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    While direct allocation of spectrum and evolved medium access protocols provide a base for ubiquitous wireless connectivity, the existing TCP/IP and OSI models were designed for wired networks and do not address open ...
  • Bellalta, Boris (Universitat Pompeu Fabra, 2007-02-23)
    Les xarxes WLANs possibiliten un accés de banda ampla a Internet des <br/>d'un terminal mòbil, essent una possible solució alternativa a les <br/>xarxes cel·lulars. Tanmateix, aquest tipus de tecnologia presenta certes ...
  • Adame, Toni; Bel, Albert; Bellalta, Boris; Barceló Vicens, Jaume; Oliver Riera, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    M2M communications are positioned to be one of the fastest growing technology segments in the next decade. Sensor and actuator networks connect communication machines and devices so that they automatically transmit ...
  • Fabri Lima, Marcelus; Ramalhinho-Lourenço, Helena; Oliver Riera, Miquel; Muñoz, Juan Carlos (Taylor & Francis, 2020)
    This work focuses on internal logistics (IL), which is defined as the flows of materials inside the same business or the same plant. We centre on the IL activities of a car-assembling company. The main objective is to ...
  • Fabri Lima, Marcelus (Universitat Pompeu Fabra, 2020-01-27)
    This thesis focus on internal logistics flows (ILF), which is defined as the flows of materials inside the same business or the same plant. Precisely, this work approaches the ILF of SEAT, a company in the Volkswagen group. ...
  • Liao, Ruizhi (Universitat Pompeu Fabra, 2014-10-06)
    IEEE 802.11 based wireless networks, especially the infrastructure based Wireless Local Area Networks (WLANs) or Wi-Fi networks, are hugely successful, and have become an indispensable part of our life at homes and working ...