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  • 1.
    Bellalta, Boris
    et al.
    Department of Information Technologies and Communications, Universitat Pompeu Fabra, Barcelona, Spain.
    Faridi, Azadeh
    Department of Information Technologies and Communications, Universitat Pompeu Fabra, Barcelona, Spain.
    Staehle, Dirk
    Department of Computer Science, University of Würzburg, Würzburg, Germany.
    Barcelo, Jaume
    Department of Information Technologies and Communications, Universitat Pompeu Fabra, Barcelona, Spain.
    Vinel, Alexey
    Department of Electronics and Communication Engineering, Tampere University of Technology, Tampere, Finland.
    Oliver, Miquel
    Department of Information Technologies and Communications, Universitat Pompeu Fabra, Barcelona, Spain.
    Performance analysis of CSMA/CA protocols with multi-packet transmission2013Ingår i: Computer Networks, ISSN 1389-1286, E-ISSN 1872-7069, Vol. 57, nr 14, s. 2675-2688Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Wireless objects equipped with multiple antennas are able to simultaneously transmit multiple packets by exploiting the channel's spatial dimensions. In this paper, we study the benefits of such Multiple Packet Transmission (MPT) approach, when it is used in combination with a Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol for fully interconnected networks, addressing the interactions between the two mechanisms and showing the performance gains that can be achieved. To this end, a very simple Media Access Control (MAC) protocol that captures the fundamental properties and tradeoffs of a CSMA/CA channel access protocol supporting MPT is introduced. Using this protocol as a reference, a new analytical model is presented for the case of non-saturated traffic sources with finite buffer space. Simulation results show that the analytical model is able to accurately characterize the steady-state behavior of the reference protocol for different number of antennas and different traffic loads, providing a useful tool for understanding the performance gains achieved by MAC protocols supporting MPT. © 2013 Elsevier B.V. All rights reserved.

  • 2.
    Bellalta, Boris
    et al.
    Pompeu Fabra University, Barcelona, Spain.
    Vinel, Alexey
    Chatzimisios, Periklis
    Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, Greece.
    Bruno, Raffaele
    Istituto di Informatica e Telematica (IIT) / Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy.
    Wang, Chonggang
    InterDigital Communications, King of Prussia, PA, USA.
    Research advances and standardization activities in WLANs2014Ingår i: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 39, s. 1-2Artikel i tidskrift (Refereegranskat)
  • 3.
    Lyamin, Nikita
    et al.
    Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Centrum för forskning om inbyggda system (CERES).
    Bellalta, Boris
    Universitat Pompeu Fabra, Barcelona, Catalunya, Spain.
    Vinel, Alexey
    Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Centrum för forskning om inbyggda system (CERES).
    Age-of-Information-Aware Decentralized Congestion Control in VANETs2020Ingår i: IEEE Networking Letters, E-ISSN 2576-3156, Vol. 2, nr 1, s. 33-37Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Decentralized Congestion Control (DCC) is one the central components of inter-vehicular communications protocol stack enabling Cooperative Intelligent Transportation System (C-ITS). In this letter we first present an analytical framework that allows to tune parameters of the DCC algorithm specified by ETSI. Then we suggest two approaches to optimize the DCC configuration using our framework. Finally, we evaluate the performance of the proposed approaches using detailed simulation experiments. We demonstrate that proposed approaches are able to control channel busy ratio stably, while proposed analytical model precisely estimates application level metrics. © 2019 IEEE

  • 4.
    Vinel, Alexey
    et al.
    Saint-Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences (SPIIRAS), St. Petersburg, Russia.
    Bellalta, BorisUniversitat Pompeu Fabra, Barcelona, Spain.Sacchi, ClaudioUniversity of Trento, Povo (Trento), Italy.Lyakhov, AndreyInstitute for Information Transmission Problems, Moscow, Russia.Telek, MiklósBudapest University of Technology and Economics, Budapest, Hungary.Oliver, MiquelUniversitat Pompeu Fabra, Barcelona, Spain.
    Multiple Access Communications: Third International Workshop, MACOM 2010, Barcelona, Spain, September 13-14, 2010. Proceedings2010Proceedings (redaktörskap) (Refereegranskat)
    Abstract [en]

    The proceedings contain 27 papers. The topics discussed include: physical model based interference classification and analysis; a test-based scheduling protocol (TBSP) for periodic data gathering in wireless sensor networks; adaptive minimum conditional bit-error-rate linear multiuser detection for STBC-MC-CDMA systems transmitting over mobile radio channels; on the performance of single LDGM codes for iterative data fusion over the multiple access channel; preliminary results on the adoption of de Bruijn binary sequences in DC-DMA systems; analysis of different channel sharing strategies in cognitive radio networks; queueing system with alternating service rates for free space optics-radio hybrid channel; an efficient method for proportional differentiated admission control implementation; cross-layer channel-aware approaches for modern wireless networks; and using agent-oriented simulation system AGNES for evaluation of sensor networks. © Springer-Verlag Berlin Heidelberg 2010

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