• Analysis of Multi-User Uplink Channel with MIMO 

      Pujolar I Bastian, Helena (Universitat Politècnica de Catalunya, 2023-04-11)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Rheinisch-Westfälische Technische Hochschule Aachen
      The increasing number of connected users as well as the availability of new services and mobile applications drive the need for higher data rates. In order to fulfill such expectations different strategies such as spatial ...
    • Decentralized widely linear precoding design for the MIMO interference channel 

      Lagén Morancho, Sandra; Agustín de Dios, Adrián; Vidal Manzano, José (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 ...
    • Joint array combining and MLSE for single-user receivers in multipath Gaussian multiuser channels 

      Lagunas Hernandez, Miguel A.; Vidal Manzano, José; Pérez Neira, Ana Isabel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-09-30)
      Article
      Accés obert
      The well-known structure of an array combiner along with a maximum likelihood sequence estimator (MLSE) receiver is the basis for the derivation of a space-time processor presenting good properties in terms of co-channel ...
    • MMSE precoding for receive spatial modulation in large MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      Receive spatial modulation (RSM) schemes enable simple and energy efficient multiple-input-multiple-output (MIMO) transceivers and yet attain high spectral efficiency, which renders them promising schemes for millimeter ...
    • Multi Antenna Time of Arrival Estimation 

      Torrent Fontbona, Ferran (Universitat Politècnica de Catalunya, 2011-07-21)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Kungliga Tekniska högskolan
      English: In the communications literature exist many documents that explain how to use spatial diversity to improve the performance of the system. However, the use of spatial diversity has not been studied in depth for ...
    • Performance of blind equalization with higher order statistics in indoor radio environments 

      Valenzuela González, José Luis; Valdominos Bardají, Antonio; Casadevall Palacio, Fernando José (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-05)
      Article
      Accés obert
      This paper analyzes the performance of blind equalization using the complex cepstrum of third-order moments applied to 4-QAM time division multiple access (TDMA) indoor radio communication systems. In particular, we have ...
    • Performance of channel estimation schemes in the presence of gaussian mixture model 

      Bai, Saveeta; khan, Muhammad Irshad; Rauf, Muhammad; Kumar, Suresh; Kumar, Haresh (2021-09-01)
      Article
      Accés obert
      Channel estimation (CE) plays a crucial role in establishing a wireless link, specifically at the receiver node. Most of the receivers that estimate the channel is in the presence of AWGN. However, these schemes perform ...