Ara es mostren els items 21-40 de 62

    • 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 ...
    • Impact of downlink signaling capacity constraints on the provision of QoS in LTE 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Choosing appropriate scheduling policies is of utmost importance to deliver acceptable levels of Quality of Service (QoS) to users of LTE networks. This decision is not only conditioned by the type of services expected ...
    • Implementació d'estacions base de telefonia mòbil lleugeres en drons: Anàlisi de la viabilitat i avaluació del funcionament 

      Domènech Pla, Núria (Universitat Politècnica de Catalunya, 2023-07-25)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Dronlab
      The aim of this investigation is to determine the feasibility of implementing ultra-lightweight base stations on a drone using LTE (Long Term Evolution) technology. To achieve this, different hardware configurations and ...
    • Implementation of the LTE Listen Mode for a Femtocell 

      Majoral Ramoneda, Marc (Universitat Politècnica de Catalunya, 2014-01-10)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      This project focuses on the implementation of the LTE Listen Mode functionality for a femtocell. The Listen Mode functionality is part of any LTE femtocell capabilities. The Listen Mode Functionality is the functionality ...
    • Improved component carrier selection considering MPR information for LTE-A uplink systems 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia; González González, David (IEEEXPLORE, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Carrier Aggregation (CA) is one of the key features introduced in LTE Release 10 to achieve higher levels of throughput. Two or more component carriers (CCs) are aggregated and user equipments (UEs) simultaneously transmit ...
    • Improved scheduling decisions for LTE-A uplink based on MPR information 

      Lema, Maria A.; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Advanced (LTE-A) allows for non-contiguous resource allocation in the uplink. The aim is to increase the spectral efficiency by exploiting users’ frequency diversity gain. This feature implies that clustered-DFT-S-OFDM must ...
    • 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 ...
    • Improving channel state information feedback for static Intercell interference coordination in LTE 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Intercell Interference is the main issue limiting the capacity of modern OFDMA-based cellular networks. Recently, extensive research work has been focused on intercell interference coordination since it has been recognized ...
    • Improving soft frequency reuse for realistic OFDMA-based cellular deployments 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia; Lee, DongSeop (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Effective interference management is a technical challenge of utmost importance for emerging OFDMA-based technologies such as Long Term Evolution (LTE) and Worldwide Interoperability for Microwave Access (WiMAX). Static ...
    • Intercell interference coordination for control channels in LTE and LTE-A: an optimization scheme based on evolutionary algorithms 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia (2017-04)
      Article
      Accés restringit per política de l'editorial
      Intercell Interference Coordination (ICIC) encompasses techniques aiming at reducing the intercell interference at cell edges, an issue affecting not only data but also control channels in Long Term Evolution (LTE) and ...
    • Intercell interference coordination for the ePDCCH in LTE-advanced macrocellular deployments 

      González González, David; García Lozano, Mario; Ruiz Boqué, Sílvia (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Abstract—This paper investigates several schemes to improve the performance of the enhanced Physical Downlink Control Channel (ePDCCH) in Long Term Evolution Advanced (LTEA) networks by means of Intercell Interference ...
    • Interference coordination method for CSI improvement in LTE uplink with carrier aggregation 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés obert
      Carrier Aggregation is an important feature in Long Term Evolution Advanced (LTE-A). It allows operators to provide larger operational bandwidths without the need of having a contiguous, large piece of spectrum. However, ...
    • Introduction of MPR information for enhanced multi-cluster scheduling in LTE-A uplink 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia; González González, David (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Against previous Long Term Evolution (LTE) re-leases, LTE-Advanced (LTE-A) allows the use of non-contiguous resource allocation in the uplink (UL). This feature leads to an increase in spectral efficiency thanks to link ...
    • Is the random access channel of LTE and LTE-A suitable for M2M communications? A survey of alternatives 

      Laya Romero, Andrés Ernesto; Alonso Zárate, Luis Gonzaga; Alonso-Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Article
      Accés restringit per política de l'editorial
      The 3GPP has raised the need to revisit the design of next generations of cellular networks in order to make them capable and efficient to provide M2M services. One of the key challenges that has been identified is the ...
    • LTE downlink physical layer processing chain SDR application acceleration with GPUs 

      Arteaga Martínez, Xavier (Universitat Politècnica de Catalunya, 2012-07-13)
      Treball Final de Grau
      Accés obert
      The technology moves fast and the wireless systems tend to be software defined radio (SDR). The new wireless standards increase the efficiency of communications, also its complexity, which demand more processing. The ...
    • LTE Handover performance evaluation based on power budget handover algorithm 

      Iñiguez Chavarría, José Bruno (Universitat Politècnica de Catalunya, 2014-02-27)
      Projecte Final de Màster Oficial
      Accés obert
      LTE (Long Term Evolution) is a fourth generation cellular network technology that provides improved performance related to data rate, coverage and capacity compared to legacy cellular systems. In this context, one of the ...
    • LTE performance evaluation with realistic channel quality indicator feedback 

      Churchman Barata, Mathew William (Universitat Politècnica de Catalunya, 2011-04-29)
      Projecte Final de Màster Oficial
      Accés obert
      In the context of mobile communications, the availability of new services and mobile applications along with the constant evolution in terminals run up the need of higher data rates. In order to fulfill such expectations, ...
    • LTE Sidelink in emergency scenarios 

      Murillo García, Maria Lorena (Universitat Politècnica de Catalunya, 2021-05-10)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Politecnico di Milano
      Natural disasters and terrorist attacks cause a large number of deaths and damage each year. One of the main problems in an emergency scenario is the network outage, either physical or due to over-traffic. In order to avoid ...
    • LTE UL power control evaluation in a system level simulator for synthetic and realistic scenarios 

      Lema, Maria A.; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José; Pérez Díaz de Cerio, David (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The research involved in this study comprises the analysis of the impact of the power control algorithm and its performance in the system level. Following our work in TD 01040, the LTE system level simulator has been ...
    • LTE-Advanced cell-specific reference signals in dependence of power allocation 

      Camas Jardí, Júlia (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Technische Universität Wien
      The main objective of this thesis is to study the channel estimation subject in LTE ( Long Term Evolution). LTE uses coherent detection and, with the purpose of obtaining information about the channel, pilot signals are ...