SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

 

Desenvolupament i anàlisi de tècniques avançades de processament digital del senyal amb èmfasi en la seva aplicació a sistemes de comunicacions i/o localització. Àrees d'interès especial són les comunicacions sense fils en tots els seus àmbits, des del personal, local i cel·lular i ampliant el seu abast fins a les comunicacions per satèl·lit i d'espai profund, així com els sistemes de localització adequats a tots aquests entorns. Les tècniques en les quals el grup acumula una experiència considerable i en què és previsible una participació més significativa en el futur són les següents: disseny de sistemes de comunicacions per satèl·lit avançats, desenvolupament de sistemes de comunicacions sense fils amb múltiples antenes en transmissió i/o recepció, desenvolupament de sistemes avançats de localització i navegació i optimització d'esquemes d’assignació de recursos per a sistemes i xarxes de comunicacions sense fils no centralitzades.

Development and analysis of advanced signal processing techniques with emphasis on their application to communication and location systems. Wireless communication networks at the personal, local and cellular levels up to satellite and deep space communications constitute areas of special interest, as well as location and navigation systems adequate to these environments. The fields in which our research group enjoys considerably experience and in which we will foreseeably be engaged in the future are the following: design of advanced satellite communication systems, development of wireless communication systems with multiple transmitting/receiving antennas, development of advanced location and navigation systems and optimization of resource allocation schemes for decentralized wireless communication systems and networks.

Recent Submissions

  • Multi-user precoder designs for RGB visible light communication systems 

    Viñals Terrés, Roser; Muñoz Medina, Olga; Agustín de Dios, Adrián; Vidal Manzano, José (2020-11-29)
    Article
    Open Access
    In this paper, we design linear precoders for the downlink of a visible light communication (VLC) system that simultaneously serves multiple users. Instead of using phosphor-coated white light-emitting diodes (PWLEDs), we ...

  • 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
    Open Access
    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 ...

  • Discontinuous user-energy distribution for dynamically ordered successive interference cancellation 

    Molina Oliveras, Francesc; Sala Álvarez, José (2021-01-28)
    Article
    Open Access
    In this letter, we consider many users sharing the same codebook and employing random signatures to modulate preamble plus payload data. Successive interference cancellation (SIC) is performed at the receiver side, whereby ...

  • Single-serving quantum broadcast channel with common, individualized, and confidential messages 

    Salek Shishavan, Farzin; Hsieh, Min-Hsiu; Rodríguez Fonollosa, Javier (2020-12)
    Article
    Open Access
    The two-receiver broadcast channel with primary and third party receivers is studied. The sender wishes to reliably communicate a common (or public) message to both receivers as well as individualized and confidential ...

  • 6G in the sky: On-demand intelligence at the edge of 3D networks (Invited paper) 

    Calvanese Strinati, Emilio; Barbarossa, Sergio; Choi, Taesang; Pietrabissa, Antonio; Giuseppi, Alessandro; De Santis, Emanuele; Vidal Manzano, José; Becvar, Zdenek; Haustein, Thomas; Cassiau, Nicolas; Costanzo, Francesca; Kim, Junhyeong; Kim, Ilgyu (2020-10)
    Article
    Open Access
    Sixth generation will exploit satellite, aerial, and terrestrial platforms jointly to improve radio access capability and unlock the support of on-demand edge cloud services in three-dimensional (3D) space, by incorporating ...

  • Polar coding for the wiretap broadcast channel with multiple messages 

    Olmo Alòs, Jaume del; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference lecture
    Open Access
    A polar coding scheme is proposed for the Wiretap Broadcast Channel with two legitimate receivers and one eaves-dropper. We consider a model in which the transmitter wishes to to reliably send different confidential and ...

  • 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) ...

  • Analysis of blocking in mmWave cellular systems: Characterization of the LOS and NLOS intervals in urban scenarios 

    García Ruiz, Cristian; Pascual Iserte, Antonio; Muñoz Medina, Olga (Institute of Electrical and Electronics Engineers (IEEE), 2020-11-10)
    Article
    Open Access
    In the millimeter waves (mmWave) bands considered for 5G and beyond, the use of very high frequencies results in the interruption of communication whenever there is no line of sight between the transmitter and the receiver. ...

  • Small rural operators techno-economic analysis to bring mobile services to isolated communities: The case of Peru Amazon rainforest 

    Prieto Egido, Ignacio; Aragon Valladares, Joel; Muñoz Medina, Olga; Córdoba Bernuy, César; Simó Reigadas, Javier; Auccapuri Quispetupa, Darwin; Bravo Fernández, Alenjandro; Martínez Fernández, Andrés (2020-11)
    Article
    Open Access
    A large number of rural communities in developing countries do not have access to communications services, unlike urban areas where these services have rapidly grown. This connectivity gap is mainly caused by the urban-oriented ...

  • Mixed integration of CDIO skills into telecommunication engineering curricula 

    Sayrol Clols, Elisa; Bragós Bardia, Ramon; Alarcón Cot, Eduardo José; Cabrera-Bean, Margarita; Calveras Augé, Anna M.; Comellas Colomé, Jaume; O'Callaghan Castellà, Juan Manuel; Pegueroles Vallés, Josep R.; Pla, Enrique; Prat Viñas, Lluís; Sáez Moreno, Germán; Sardà Ferrer, Joan; Tallon Montoro, Carme (2010)
    Article
    Open Access
    Spain has been intensively involved in designing engineering curricula for the last two years and next academic year all engineering schools will be deploying all bachelor programs adapted to the EHEA and to the Spanish ...

  • Autoencoders for health improvement by compressing the set of patient features 

    Cabrera-Bean, Margarita; Pereira Dos Santos, Víctor Jerri; Roso Llorach, Albert; Fernández Bertolín, Sergio; Vidal Manzano, José; Violán Fors, Concepción (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference lecture
    Restricted access - publisher's policy
    A challenge to solve when analyzing multimorbidity patterns in elderly people is the management of a high number of characteristics associated with each patient. The main variables to study multimorbidity are diseases, ...

  • Five-year trajectories of multimorbidity patterns in an elderly Mediterranean population using Hidden Markov Models 

    Violán Fors, Concepción; Fernández Bertolín, Sergio; Guisado Clavero, Marina; Foguet Boreu, Quintí; Valderas, José Maria; Vidal Manzano, José; Roso Llorach, Albert; Cabrera-Bean, Margarita (Nature, 2020-12)
    Article
    Open Access
    This study aimed to analyse the trajectories and mortality of multimorbidity patterns in patients aged 65 to 99 years in Catalonia (Spain). Five year (2012–2016) data of 916,619 participants from a primary care, population-based ...

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