Now showing items 1-20 of 77

  • Adapting fractional frequency reuse to realistic OFDMA cellular networks 

    González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Lema, Maria A.; Lee, Dong Seop (2013)
    Conference report
    Restricted access - publisher's policy
    Effective intercell interference (ICI) mitigation has been identified as a key challenge for emerging OFDMA cellular technologies such as Long Term Evolution (LTE). In order to address this issue, mobile operators have ...
  • Admission control in LTE uplink systems with sounding reference signals based channel state indicator 

    Lema, Maria A.; Ramon Ferran, Sergi; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2012)
    Conference report
    Restricted access - publisher's policy
    This article focuses on the investigation of the Admission Control techniques in order to assure Quality of Service (QoS) in Long Term Evolution (LTE) systems. So as to estimate the users bandwidth requirement, Sounding ...
  • A metaheuristic-based downlink power allocation for LTE/LTE-A cellular deployments 

    González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Lee, Dong Seop (2014-08)
    Article
    Restricted access - publisher's policy
    The explosive growth of cellular networks makes their deployment and maintenance more and more complex, time consuming, and expensive. Self-Organizing Networks have been recognized as a promising way to alleviate this ...
  • An analytical view of static intercell interference coordination techniques in OFDMA networks 

    González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel methodology to assess the downlink performance of static intercell interference coordination techniques in the context of OFDMA-based cellular networks. In the last few years, interference ...
  • A novel ICIC-oriented channel state information feedback scheme for aperiodic reporting in LTE 

    González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2012)
    Conference report
    Restricted access - publisher's policy
    In moderm OFDMA-based cellular networks, intercell interference is the main issue limiting the capacity of these systems. Recently, intensive research work has been focused on intercell interference coordination as it ...
  • A novel multiobjective cell switch-off framework for cellular networks 

    González González, David; Hämäläinen, Jyri; Yanikomeroglu, Halim; García Lozano, Mario; Senarath, Gamini (Institute of Electrical and Electronics Engineers (IEEE), 2016-10-25)
    Article
    Open Access
    Cell switch-off (CSO) is recognized as a promising approach to reduce the energy consumption in the next-generation cellular networks. However, CSO poses serious challenges not only from the resource allocation perspective ...
  • A novel multiobjective framework for cell switch-off in dense cellular networks 

    González González, David; Yanikomeroglu, Halim; García Lozano, Mario; Ruiz Boqué, Sílvia (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    The green communications paradigm has been receiving much attention in wireless networks in recent years. More specifically, in the context of cellular communications, the concept of Cell Switch Off (CSO) has been recognized ...
  • A novel multiobjective framework for cell switch-off in dense cellular networks 

    González González, David; Yanikomeroglu, Halim; García Lozano, Mario; Ruiz Boqué, Sílvia (2014)
    Conference report
    Restricted access - publisher's policy
    The green communications paradigm has been receiving much attention in wireless networks in recent years. More specifically, in the context of cellular communications, the concept of Cell Switch Off (CSO) has been ...
  • A traffic aware energy saving scheme for multicarrier HSPA+ 

    Jada, Maliha Urooj; García Lozano, Mario; Hämäläinen, Jyri (Springer, 2014)
    Conference report
    Restricted access - publisher's policy
    In the near future, an increase in cellular network density is expected to be one of the main enablers for the newly introduced challenging capacity goals. This development will lead to an increase in the network energy ...
  • A traffic aware energy saving scheme for multicarrier HSPA+ 

    Jada, Maliha Urooj; García Lozano, Mario; Hämäläinen, Jyri (Springer, 2015-02-16)
    Article
    Open Access
    In the near future, an increase in cellular network density is expected to be one of the main enablers for the newly introduced challenging capacity goals. This development will lead to an increase in the network energy ...
  • Audit of a real Wi-Fi deployment to provide data, VoIP communications and an IIoT item location service 

    Pérez Díaz de Cerio, David; Valenzuela González, José Luis; García Lozano, Mario (Academy Publisher, 2017-10-17)
    Article
    Restricted access - publisher's policy
    As the number of Access Points and stations sharing the unlicensed ISM (Industrial Scientific Medical) bands increases, interference diminishes the theoretical performance of 802.11 standard. This paper presents results ...
  • Automatic Link Balancing Using Fuzzy Logic Control of Handover Parameter 

    d'Orey, Pedro M.; García Lozano, Mario; Ferreira, Michel (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-09-26)
    Conference report
    Open Access
  • Capacity and coverage trade-off in WCDMA environments with repeaters deployment 

    García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (WPMC, 2005)
    Conference lecture
    Open Access
    This work derives the analytic expression of the feasibility condition for the uplink of a WCDMA mobile communications system with repeaters deployment in a multiservice environment with a general heterogeneous layout. ...
  • Capacity and coverage tradeoff in WCDMA environments with repeaters deployment. 

    García Lozano, Mario; Alonso Zárate, Luis Gonzaga; Casadevall Palacio, Fernando José; Ruiz Boqué, Sílvia (2007-02)
    Article
    Open Access
  • Comparison of 3G-LTE DL scheduling strategies 

    Ruiz Boqué, Sílvia; Haro, Eva; González González, David; García Lozano, Mario; Olmos Bonafé, Juan José (2009-05-18)
    Conference report
    Open Access
  • Comparison of different distributed scheduling strategies for static/dynamic LTE scenarios 

    Ruiz Boqué, Sílvia; Haro, Eva; González González, David; García Lozano, Mario; Olmos Bonafé, Juan José (2009-09-30)
    Conference report
    Open Access
  • Contribution to wireless access optimization and dynamic enhancement of WCDMA networks 

    García Lozano, Mario (Universitat Politècnica de Catalunya, 2009-01-12)
    Doctoral thesis
    Open Access
    El despliegue de las redes celulares 3G/3.5G plantea un reto a las estrategias de planificación y optimización radio tradicionales. A diferencia de los sistemas 2G FDMA, cobertura y capacidad están estrechamente ligadas y ...
  • CPICH power optimisation by means of simulated annealing in an UTRA-FDD environment 

    García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2003-11)
    Article
    Open Access
  • Cubic spline extrapolation for uplink channel quality prediction in LTE-A with carrier aggregation 

    Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia (Wiley-Blackwell, 2015-05-25)
    Article
    Open Access
    In the context of wireless communications, an accurate channel state information is the key to a correct radio resource management. In the uplink of long-term evolution advanced, obtaining up-to-date channel state information ...
  • Downlink resource allocation in LTE: centralized vs. distributed approach 

    González González, David; Corvino, Virginia; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José; García Lozano, Mario; Verdone, Roberto (2009-09-30)
    Conference report
    Restricted access - publisher's policy
    The 3GPP specifications for LTE leave many degrees of freedom to operators about how to design radio Resource Allocation (RA) strategies, and this is actually also allowed by the OFDM/OFDMA access technology. This means ...