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Ara es mostren els items 9-28 de 71

    • Decentralized beamforming with coordinated sounding for inter-cell interference management 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José (VDE Conference Publications, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents and evaluates a decentralized beamforming design for inter-cell interference management that is highly recommended in Time Division Duplex (TDD) cellular network deployments and interference limited ...

    • Decentralized coordinated precoding for dense TDD small cell networks 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José (2015-08-01)
      Article
      Accés obert
      Cellular networks need the densification of small eNBs (SeNBs) to face the tremendous data traffic demand growth, implying an interference increase and making transmit coordination a key enabler. This article proposes a ...

    • Decentralized weighted sum rate maximization in MIMO-OFDMA femtocell networks 

      Agustín de Dios, Adrián; Vidal Manzano, José; Muñoz Medina, Olga; Rodríguez Fonollosa, Javier (2012)
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      We propose a decentralized strategy for downlink interference management in overlaid MIMO femtocell-macrocell deployments operating in the same band under OFDMA access. The resource allocation, consisting of MIMO precoders ...

    • Decentralized widely linear precoding design for the MIMO interference channel 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José (2014)
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      his paper addresses the interference management in a MIMO interference channel (MIMO-IC) by proposing a decentralized transmit and receive beamformer optimization using improper (or circularly asymmetric complex) Gaussian ...

    • Degrees of freedom of the rank-deficient MIMO X channel 

      Agustín de Dios, Adrián; Vidal Manzano, José (2013)
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      The multiple-input multiple-output (MIMO) X channel with rank-deficient channels is considered. We characterize the total degrees of freedom (DoF) by defining an outer bound which is attained by the proposed precoding ...

    • Delay minimization in dynamic and scalable multi-operator wireless backhauling 

      Surís, Didac; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      This paper focuses on the optimization of routing and interference-aware resource allocation for a wireless backhaul network, focusing on the end-to-end delay minimization. We adopt a convex optimization formulation, which ...

    • Deliverable D21 (project TUCAN3G). Socio-economic scenarios, technical specifications and architecture for the proof of concept 

      García Rey, Ana; Prieto Egido, Ignacio; Sánchez, Ernesto; Muñoz Medina, Olga; Vidal Manzano, José; Agustín de Dios, Adrián; Pascual Iserte, Antonio; Simó Reigadas, Javier; Paco Fernández, Juan; Castillo Molina, Yury Yohana; Ramírez, Gustavo; Tupayachi Calderón, Omar (2013-05)
      Report de recerca
      Accés obert
      TUCAN3G aims to develop solutions to provide 3G services in isolated rural areas of developing countries. In order to do so, this document starts by analysing the reference scenarios where TUCAN3G solutions could be applied, ...

    • Deliverable D22 (project TUCAN3G). Operational technical handbook 

      Prieto Egido, Ignacio; Martínez Fernández, Andrés; Sotelo López, Carlos; Agustín de Dios, Adrián; Vidal Manzano, José; Simó Reigadas, Javier; Paco Fernández, Juan; Rendón, Álvaro (2013-05)
      Report de recerca
      Accés obert
      This document shows a detailed plan for the work required to accomplish the objectives of TUCAN3G. All partners have contributed to this document by defining tasks and subtask, in coordination with the technical coordinator ...

    • Distributed inter-cluster interference management for CoMP-based cellular networks 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José (2013)
      Text en actes de congrés
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      This paper proposes distributed inter-cluster interference management procedures for 1 Coordinated Multi-Point (CoMP) Time Division Duplexing (TDD) cellular networks, in which a set of base stations (BSs), that form a ...

    • Distributed user-centric clustering and precoding design for CoMP joint transmission 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José; Soret, Beatriz; Pedersen, Klaus (2015)
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      This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks. Each user is associated with a user-centric cluster of base ...

    • Downlink coordinated radio resource management in cellular networks with partial CSI 

      Calvo Page, Eduard; Muñoz Medina, Olga; Vidal Manzano, José; Agustín de Dios, Adrián (2012-03)
      Article
      Accés restringit per política de l'editorial
      We explore decentralized coordination of sectored cellular networks to adapt the usage of downlink resources to the instantaneous network conditions. The transmission frame consists of an orthogonal bandwidth usage ...

    • Downlink multi-cell radio resource management for coordinated base stations 

      Muñoz Medina, Olga; Calvo Page, Eduard; Vidal Manzano, José; Agustín de Dios, Adrián (2010)
      Text en actes de congrés
      Accés obert

    • Downlink multi-user massive MIMO transmission using receive spatial modulation 

      Raafat Hosny Mohamed Fahm, Ahmed; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2020-10-01)
      Article
      Accés obert
      In this paper, we consider the downlink of a multi-user multiple-input-multiple-output system operating at the millimeter wave band in an outdoor environment. In this band, receive spatial modulation (RSM) schemes have ...

    • 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 efficient cell load-aware coverage optimization for small-cell networks 

      Agustín de Dios, Adrián; Lagén Morancho, Sandra; Vidal Manzano, José (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Self-organizing network is a new capability envisioned for the near-future wireless cellular networks. Among the different use cases, here we tackle the coverage optimization with the objective of adjusting the power devoted ...

    • Energy efficient transmit-receive hybrid spatial modulation for large-scale MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Sefunç, Merve; Agustín de Dios, Adrián; Vidal Manzano, José; Jorswieck, Eduard Axel; Corre, Yoann (2020-03-01)
      Article
      Accés obert
      We consider a point to point large-scale multipleinput multiple-output (MIMO) system operating in the millimeter wave (mmWave) band and an outdoor scenario. Novel transmit and receive spatial modulation (SM) schemes are ...

    • Energy efficient transmit-receive spatial modulation for uplink-downlink large-scale MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Yüzgeçcioglu, Merve; Zahid Aslam, Mohammed; Agustín de Dios, Adrián; Vidal Manzano, José; Jorswieck, Eduard Axel; Corre, Yoann (2019-02-21)
      Text en actes de congrés
      Accés obert
      Energy efficient spatial modulation-aided uplink and downlink designs for future millimeterwave (mmWave) large-scale multiple-input multiple-output (MIMO) systems are considered. Two novel uplink transceivers are proposed ...

    • Enhanced MDIR receiver for space-time dispersive channels 

      Vidal Manzano, José; Cabrera-Bean, Margarita; Agustín de Dios, Adrián; Lagunas Hernandez, Miguel A. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-01-31)
      Article
      Accés obert
      A particular property of the matched desired impulse response receiver is introduced in this paper, namely, the fact that full exploitation of the diversity is obtained with multiple beamformers when the channel is ...

    • FREEDOM - D42 Design and evaluation of effective procedures for MAC layer 

      Mach, P.; Becvar, Z.; Bestak, R.; Neruda, M.; Roux, P.; Hariyanto, H.; Ari Wibowo, F.X.; Agustín de Dios, Adrián; Muñoz Medina, Olga; Vidal Manzano, José; Carfagna, A. (2012-01)
      Report de recerca
      Accés obert
      The implementation of femtocells introduces many technical challenges that must be solved in order to fully exploit their potentials. This deliverable primarily focuses on control procedures for radio resource management ...

    • FREEDOM D3.2 Interference Coordination Protocols in Femto-based Networks 

      Agustín de Dios, Adrián; Muñoz Medina, Olga; Vidal Manzano, José; Goldhammer, Mariana; Rodríguez Fonollosa, Javier; Pastore, Adriano; Sardellitti, Stefania; Pescosolido, Loreto; di Lorenzo, Paolo; Barbarossa, Sergio; Baiocchi, Andrea; de Marinis, Enrico; Imponente, Giovanni; Pucci, Fabrizio; Rosi, Guido (2011-11-28)
      Report de recerca
      Accés obert
      This document looks into coordinated radio resource allocation algorithms in deployments of huge number of femto-access points (FAP) by exploiting the message exchange at control-plane level through the wired ISP backhaul ...