Exploració per tema "Long-term evolution (Telecomunicacions)"

Ara es mostren els items 1-20 de 39

    • 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
      Accés restringit per política de l'editorial
      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 ...

    • A roadmap from UMTS optimization to LTE self-optimization 

      Sallent Roig, Oriol; Pérez Romero, Jordi; Sánchez González, Juan; Agustí Comes, Ramon; Díaz Guerra, Miguel Angel; Henche, David; Paul, Daniel (2011-06)
      Article
      Accés restringit per política de l'editorial
      Self-Organizing Networks (SON) are currently being introduced by the 3rd Generation Partnership Project (3GPP) as part of the Long Term Evolution (LTE) system as a key driver for improving the operation of wireless networks. ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 ...

    • An opportunistic cognitive radio communication through the exploitation of the small-scale fading mechanisms of the LTE mobile channel 

      Medina Acosta, Gerardo Agni; Delgado Penin, José Antonio; Haneda, Katsuyuki (2013)
      Article
      Accés obert
      In recent years, the cognitive radio technology has attracted the attention of all the players in the telecommunication field (i.e., researchers, industry, service providers, and regulatory agencies) as a way of facing the ...

    • Análisis y diseño de un plan de mejora de la experiencia de cliente de la red móvil de Orange en zona nordeste 

      Gómez Barroso, Antonio (Universitat Politècnica de Catalunya, 2016-06-03)
      Projecte/Treball Final de Carrera
      Accés restringit per acord de confidencialitat

    • 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
      Accés obert
      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 ...

    • Delay analysis of Push-to-Talk over Cellular (PoC) Service Solutions for Public Safety Communications over LTE Networks 

      Lu, Chengsui (Universitat Politècnica de Catalunya, 2012-08-27)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] In this master thesis, the concept of public safety communication solutions over modern commercial cellular systems is presented, and the delay analysis for Puch-to-Talk over Cellular (PoC) service is provided ...

    • Deployment of Indoor LTE Small-Cells in TV White Spaces 

      Abdelkader, Abdelrahman Farouk Mahmoud (Universitat Politècnica de Catalunya, 2015-07)
      Projecte Final de Màster Oficial
      Accés obert
      This work focuses on the deployment of indoor LTE small cells acting as secondary transmitters in TVWS. Proposed methods make use of measurements stored in a Radio Environment Map (REM) that characterizes the DVB-T reception ...

    • Development and test of LTE deployment based on cloud technology 

      Gonzalez Fontan, Tomas; Morcillo García, Eric; Casamitjana Lobeto, Juan (Universitat Politècnica de Catalunya, 2019-07-25)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Development of a LTE Air to Ground framework for ATM and APC communications 

      Tassinari Carlo, Giampalo (Universitat Politècnica de Catalunya, 2013-07-12)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      [ANGLÈS] Framework developed using C++, PHP and JavaScript, it allows the user to simulate the transmission of ATM messages through LTE networks, as well as predicting received Power and SINR maps.

    • Development of a LTE system-level simulator for aircraft cabins 

      Muñoz López, Albert (Universitat Politècnica de Catalunya, 2012-11-30)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      [ANGLÈS] Mobile broadband has changed the way we live and work. The way we communicate is becoming enriched with higher speeds and exciting new services both at home, on the road and on aircraft. Nowadays, a growing number ...

    • Dynamic energy efficient distance-aware base station switch on/off scheme for LTE-advanced 

      Kartsakli, Elli; Bousia, Alexandra; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Reducing the energy consumption in wireless networks has become a significant problem, not only because of its great impact on the global energy crisis, but also because it represents a noteworthy cost for telecommunication ...

    • Efficient Mobility Management in LTE Femtocell Network 

      Xiang, Tianyu (Universitat Politècnica de Catalunya, 2014-08)
      Projecte Final de Màster Oficial
      Accés obert
      The future network architecture towards heterogeneous, it would be converged many different types of network, such as cellular network, femtocell network, ad-hoc network, MANET, VANET and wireless sensor network. With new ...

    • Efficient use of paired spectrum bands through TDD small cell deployments 

      Agustín de Dios, Adrián; Lagén Morancho, Sandra; Vidal Manzano, José; Muñoz Medina, Olga; Pascual Iserte, Antonio; Zhiheng, Guo; Ronghui, Wen (2017-09)
      Article
      Accés obert
      Traditionally, wireless cellular systems have been designed to operate in frequency division duplexing (FDD) paired bands that allocate the same amount of spectrum for both downlink (DL) and uplink (UL) communications. ...

    • Energy and spectrum efficient user association in millimeter wave backhaul small cell networks 

      Mesodiakaki, Agapi; Adelantado Freixer, Ferran; Alonso Zárate, Luis Gonzaga; Di Renzo, Marco; Verikoukis, Christos (2017-02)
      Article
      Accés obert
      Macrocells are expected to be densely overlaid by small cells (SCs) to meet increasing capacity demands. Due to their dense deployment, some SCs will not be connected directly to the core network, and thus, they may forward ...

    • Estudi de cobertura en una xarxa LTE-Advanced 

      Forca Bastús, Marc (Universitat Politècnica de Catalunya, 2017-06)
      Treball Final de Grau
      Accés obert
      The great demand for mobile data traffic has led to the development of new technologies. The last of these is known as LTE-Advanced. This incorporates great improvements that have revolutionized the mobile technology market. ...

    • Estudio de la estrategia de coordinación de interferencias entre celdas (ICIC) en LTE 

      Horno Torres, Sergio del (Universitat Politècnica de Catalunya, 2016-09)
      Treball Final de Grau
      Accés obert
      High consumption data that currently exists worldwide requires that access networks meet the expectations of user providing a fast download of data and a good network quality. The pre-4G technology is the so-called LTE ...

    • Hardware-efficient implementation of a femtocell/macrocell interference-mitigation technique for high-performance LTE-based systems 

      Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; Payaró Llisterri, Miquel (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents the FPGA design of an interference-aware digital front end tailored for heterogeneous multi-cell LTE-based systems. A resource-optimized RTL architecture has been implemented and validated under realistic ...

    • Implementation of the Physical Random Access Channel in TDD-LTE using Software Defined Radio 

      Tiati Dang, Daniel Stephane (Universitat Politècnica de Catalunya, 2016-02-08)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Aalto-yliopisto. Sähkötekniikan korkeakoulu
      In Long Term Evolution (LTE) uplink transmission, a User Equipment (UE) must be time-synchronized before normal data transmission. So that a Physical Random Access Channel (PRACH) becomes a crucial factor for LTE access ...

    • Improved scheduling techniques for efficient uplink communications with carrier aggregation 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Transmitted power in Long Term Evolution - Advanced (LTE-A) uplink (UL) is strongly related to the number of physical resource blocks (PRBs) allocated. As the transmitted bandwidth increases power does so. However, this ...