Now showing items 1-12 of 12

    • Approximations of the aggregated interference statistics for outage analysis in massive MTC 

      Liesegang Maria, Sergi; Pascual Iserte, Antonio; Muñoz Medina, Olga (Multidisciplinary Digital Publishing Institute (MDPI), 2019-12)
      Article
      Open Access
      This paper presents several analytic closed-form approximations of the aggregated interference statistics within the framework of uplink massive machine-type-communications (mMTC), taking into account the random activity ...
    • Energy driven transmission schemes for coexistence between HTC and MTC 

      Liesegang Maria, Sergi; Pascual Iserte, Antonio; Muñoz Medina, Olga (VDE Verlag, 2021)
      Conference report
      Restricted access - publisher's policy
      Coexistence between human-type and machine-type communications is essential in future cellular networks. The former demands high data rates whereas long battery lifetimes are crucial for the latter. In this paper, we ...
    • Energy-driven techniques for massive machine-type communications 

      Liesegang Maria, Sergi (Universitat Politècnica de Catalunya, 2022-11-07)
      Doctoral thesis
      Open Access
      In the last few years, a lot of effort has been put into the development of the fifth generation of cellular networks (5G). Given the vast heterogeneity of devices coexisting in these networks, new approaches have been ...
    • Entropy based sensing schemes for energy efficiency in massive MTC 

      Liesegang Maria, Sergi; Pascual Iserte, Antonio; Muñoz Medina, Olga (2020-03-31)
      Article
      Open Access
      Machine-type-communications (MTC) are crucial in the evolution of mobile communication systems. Within this context, we distinguish the so-called massive MTC (mMTC), where a large number of devices coexist in the same ...
    • Examen Final 

      Cabrera Estanyol, Ferran de; Molina Oliveras, Francesc; Liesegang Maria, Sergi; Salavedra Molí, Josep; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2021-06-16)
      Exam
      Restricted access to the UPC academic community
    • Examen final del quadrimestre de primavera, curs 2018-2019: enunciat i solucions genèriques 

      Gasull Llampallas, Antoni; Liesegang Maria, Sergi; Molina Oliveras, Francesc; Sala Álvarez, José; Salavedra Molí, Josep; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2019-06-17)
      Exam
      Restricted access to the UPC academic community
    • Interference statistics approximations for data rate analysis in uplink massive MTC 

      Liesegang Maria, Sergi; Muñoz Medina, Olga; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      Machine-type-communications have attracted a lot of interest in the past years. They rely on interactions between devices with no human supervision. This will help to the advent of a plethora of applications such as the ...
    • Pilot contamination reduction in massive MIMO systems 

      Liesegang Maria, Sergi (Universitat Politècnica de Catalunya, 2017)
      Master thesis
      Open Access
      Covenantee:   Technische Universität München
      Massive MIMO systems have been pointed out as one of the possible strategies to enhance system performance and reach the high data rates modern wireless communications demand. It represents a breakthrough in modern ...
    • SAR remote sensing image analysis with max-tree representation for ship monitoring 

      Liesegang Maria, Sergi (Universitat Politècnica de Catalunya, 2015-07)
      Bachelor thesis
      Open Access
      Nowadays, object detection is a recurrent and important field of study in Image Processing and particularly in Remote Sensing. In fact, it has evolved into a necessary application for our society as many technologies are ...
    • Sensor selection and distributed quantization for energy efficiency in massive MTC 

      Liesegang Maria, Sergi; Muñoz Medina, Olga; Pascual Iserte, Antonio (2021-12)
      Article
      Open Access
      This paper presents an estimation approach within the framework of uplink massive machine-type-communications (mMTC) that considers the energy limitations of the devices. We focus on a scenario where a group of sensors ...
    • Ship detection in SAR images based on Maxtree representation and graph signal processing 

      Salembier Clairon, Philippe Jean; Liesegang Maria, Sergi; López Martínez, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
      Article
      Open Access
      This paper discusses an image processing architecture and tools to address the problem of ship detection in synthetic-aperture radar images. The detection strategy relies on a tree-based representation of images, here a ...
    • Stochastic geometry analysis and design of wireless powered MTC networks 

      Liesegang Maria, Sergi; Muñoz Medina, Olga; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      Machine-type-communications (MTC) are being crucial in the development of next generation mobile networks. Given that MTC devices are usually battery constrained, wireless power transfer (WPT) and energy harvesting (EH) ...