Now showing items 1-16 of 16

    • 3D polarized modulation: system analysis and performance 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (2018-06-26)
      Article
      Open Access
      In this paper we present a novel modulation technique for dual polarization communication systems, which reduces the error rate compared with the existent schemes. This modulation places the symbols in a 3D constellation, ...
    • A cross-layer scheduling strategy for the downlink of a MIMO-OFDMA system with heterogeneous traffic 

      Tralli, V.; Pérez Neira, Ana Isabel; Henarejos Hernández, Pol (2009)
      Conference report
      Open Access
      in this paper we propose and investigate a cross-layer multiuser scheduling strategy for the support of heterogeneous traffic in the downlink of a MIMO-OFDMA system. It jointly considers different objectives: maximize ...
    • Advanced signal processing techniques for fixed and mobile satellite communications 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Mazzali, N.; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Enabling ultra fast systems has been widely investigated during recent decades. Although polarization has been deployed from the beginning in satellite communications, nowadays it is being exploited to increase the throughput ...
    • Assignació de potència de baixa complexitat per sistemas OFDMA-multiantena 

      Henarejos Hernández, Pol (Universitat Politècnica de Catalunya, 2009-05)
      Master thesis (pre-Bologna period)
      Open Access
      Aquest projecte presenta una nova tècnica de gestió de recursos en escenaris de broadcasting. Concretament gestiona l’accés dels usuaris mitjançant una assignació de potència utilitzant una implementació de baixa ...
    • Capacity analysis of index modulations over spatial, polarization and frequency dimensions 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (2017-08-23)
      Article
      Open Access
      IEEE Determining the capacity of a modulation scheme is a fundamental topic of interest. Index Modulations (IM), such as Spatial Modulation (SMod), Polarized Modulation (PMod) or Frequency Index Modulation (FMod), are ...
    • Channel dependent mutual information in index modulations 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Tato, Anxo; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Mutual Information is the metric that is used to perform link adaptation, which allows to achieve rates near capacity. The computation of adaptive transmission modes is achieved by employing the mapping between the Signal ...
    • Dual polarized modulation and reception for next generation mobile satellite communications 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (2015-10-01)
      Article
      Open Access
      This paper presents the novel application of polarized modulation (PMod) for increasing the throughput in mobile satellite transmissions. One of the major drawbacks in mobile satellite communications is the fact that the ...
    • Evolution of spatial and multicarrier scheduling: towards multi-cell scenario 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Tralli, Velio; Moretti, Marco; Dimitriou, Nikos; Dainelli, Giulio (2010)
      Conference report
      Open Access
      OFDMA systems are considered as the promising multiple access scheme of next generation multi-cellular wireless systems. In order to ensure the optimum usage of radio resources, OFDMA radio resource management algorithms ...
    • Forward link interference mitigation in mobile interactive satellite systems 

      Henarejos Hernández, Pol; Vazquez, Miguel Angel; Cocco, Giuseppe; Pérez Neira, Ana Isabel (American Institute of Aeronautics and Astronautics (AIAA), 2013)
      Conference report
      Restricted access - publisher's policy
      We present the results of the performance evaluation of polarization-time coding and soft interference cancellation in multi-beam satellite systems a ected by co-channel interference in realistic setups. The standard of ...
    • Low-complexity resource allocation with rate balancing for the MISO-OFDMA broadcast channel 

      Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Tralli, Velio; Lagunas Hernandez, Miguel A. (2012-12)
      Article
      Restricted access - publisher's policy
      This paper presents a low-complexity algorithm for multiuser scheduling and resource allocation in the Multiple Input Single Output (MISO) downlink channel with Orthogonal Frequency Division Multiple Access (OFDMA). The ...
    • Polarization and index modulations : a theoretical and practical perspective 

      Henarejos Hernández, Pol (Universitat Politècnica de Catalunya, 2017-07-19)
      Doctoral thesis
      Open Access
      Radiocommunication systems have evolved significantly in recent years in order to meet present and future demands. Historically, time, frequency and more recently, spatial dimensions have been used to improve capacity and ...
    • Practical implementation of link adaptation with dual polarized modulation 

      Tato, Anxo; Mosquera Nartallo, Carlos; Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      The use of dual polarization in mobile satellite systems is very promising for increasing the channel capacity. Polarized Modulation is proposed in this paper for use in practical systems, by providing simple equations for ...
    • Prototyping with SDR: a quick way to play with next-gen communications systems 

      Baranda, J.; Henarejos Hernández, Pol; Grunenberger, Yan; Nájar Martón, Montserrat (2011)
      Conference lecture
      Open Access
      Abstract—In this paper we present our approach regarding the implementation of new wireless radio receiver exploiting filterbank techniques, using a software-development driven approach. Since most of the common radio ...
    • Smart resource allocation: beyond the optimum 

      Henarejos Hernández, Pol (Universitat Politècnica de Catalunya, 2012-05-22)
      Master thesis
      Open Access
      [ANGLÈS] Dealing with broadcast scenarios has become a relevant topic in the scientific community. Because of interference, resource management presents a challenge, specially when spatial diversity is introduced. Many ...
    • The CTTC 5G end-to-end experimental platform: integrating heterogeneous wireless/optical networks, distributed cloud, and IoT devices 

      Muñoz González, Raul; Mangues Bafalluy, Josep; Vilalta, Ricard; Verikoukis, Christos; Alonso Zárate, Jesús; Georgiadis, Apostolos; Payaró Llisterri, Miquel; Pérez Neira, Ana Isabel; Casellas Regi, Ramón; Martínez Rivera, Ricardo Victor; Núñez Martínez, José; Requena Esteso, Manuel; Pubill, David; Font Bach, Oriol; Henarejos Hernández, Pol; Serra, Jordi; Vázquez Gallego, Francisco (2016-01-29)
      Article
      Open Access
      The Internet of Things (IoT) will facilitate a wide variety of applications in different domains, such as smart cities, smart grids, industrial automation (Industry 4.0), smart driving, assistance of the elderly, and home ...
    • Towards an SDN/NFV-based multi-tenant network and cloud testbed for end-to-end 5G services 

      Muñoz González, Raül; Mangues Bafalluy, Josep; Bartzoudis, Nikolaos; Vilalta Cañellas, Ricard; Martínez Rivera, Ricardo Victor; Casellas Regi, Ramon; Baldo, Nicola; Núñez Martínez, José; Requena Esteso, Manuel; Font Bach, Oriol; Payaró Llisterri, Miquel; Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (Wireless World Research Forum (WWRF), 2015)
      Conference report
      Open Access
      5G has a main requirement of highly flexible, ultralow latency and ultra-high bandwidth virtualized infrastructure in order to deliver end-to-end services. This requirement can be met by efficiently ...