Browsing by Author "Wilhelmi Roca, Francesc"

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  • Collaborative spatial reuse in wireless networks via selfish multi-armed bandits
    Wilhelmi Roca, Francesc; Cano Bastidas, Cristina; Neu, Gergely; Bellalta, Boris; Jonsson, Anders, 1973-; Barrachina Muñoz, Sergio (Elsevier, 2019)
    Next-generation wireless deployments are characterized by being dense and uncoordinated, which often leads to inefficient use of resources and poor performance. To solve this, we envision the utilization of completely ...
  • Combining software defined networks and machine learning to enable self organizing WLANs
    López Raventós, Álvaro; Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Next generation of wireless local area networks (WLANs) will operate in dense, chaotic and highly dynamic scenarios that in a significant number of cases may result in a low user experience due to uncontrolled high ...
  • Design of cost-effective wireless networks in high-density enclosures
    Wilhelmi Roca, Francesc (2015-12-02)
    The design of high-density wireless networks is a challenge due to the compromise among several design factors. Thus, this study has two major purposes: (1) To provide guidelines for performing high-density wireless ...
  • A flexible machine-learning-aware architecture for future WLANs
    Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris; Cano Bastidas, Cristina; Jonsson, Anders, 1973-; Ram, Vishnu (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Lots of hopes have been placed on machine learning (ML) as a key enabler of future wireless networks. By taking advantage of large volumes of data, ML is expected to deal with the ever-increasing complexity of networking ...
  • Implications of decentralized Q-learning resource allocation in wireless networks
    Wilhelmi Roca, Francesc; Bellalta, Boris; Cano Bastidas, Cristina; Jonsson, Anders, 1973- (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Reinforcement Learning is gaining attention by the wireless networking community due to its potential to learn good-performing configurations only from the observed results. In this work we propose a stateless variation ...
  • On the performance of the spatial reuse operation in IEEE 802.11ax WLANs
    Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    The Spatial Reuse (SR) operation included in the IEEE 802.11ax-2020 (11ax) amendment aims at increasing the number of parallel transmissions in an Overlapping Basic Service Set (OBSS). However, many unknowns exist about ...
  • Online primary channel selection for dynamic channel bonding in high-density WLANs
    Barrachina Muñoz, Sergio; Wilhelmi Roca, Francesc; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    In order to dynamically adapt the transmission bandwidth in wireless local area networks (WLANs), dynamic channel bonding (DCB) was introduced in IEEE 802.11n. It has been extended since then, and it is expected to be a ...
  • Potential and pitfalls of multi-armed bandits for decentralized spatial reuse in WLANs
    Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris; Cano Bastidas, Cristina; Jonsson, Anders, 1973-; Neu, Gergely (Elsevier, 2019)
    Spatial Reuse (SR) has recently gained attention to maximize the performance of IEEE 802.11 Wireless Local Area Networks (WLANs). Decentralized mechanisms are expected to be key in the development of SR solutions for ...
  • Spatial reuse in IEEE 802.11ax WLANs
    Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Cano Bastidas, Cristina; Selinis, Ioannis; Bellalta, Boris (Elsevier, 2021)
    Dealing with massively crowded scenarios is one of the most ambitious goals of next-generation wireless networks. With this goal in mind, the IEEE 802.11ax amendment includes, among other techniques, the Spatial Reuse (SR) ...
  • To overlap or not to overlap: Enabling channel bonding in high-density WLANs
    Barrachina Muñoz, Sergio; Wilhelmi Roca, Francesc; Bellalta, Boris (Elsevier, 2019)
    Wireless local area networks (WLANs) are the most popular kind of wireless Internet connection because of their simplicity of deployment and operation. As a result, the number of devices accessing the Internet through WLANs ...
  • Towards spatial reuse in future wireless local area networks: a sequential learning approach
    Wilhelmi Roca, Francesc (Universitat Pompeu Fabra, 2020-11-11)
    The Spatial Reuse (SR) operation is gaining momentum in the latest IEEE 802.11 family of standards due to the overwhelming requirements posed by next-generation wireless networks. In particular, the rising traffic requirements ...
  • TXOP sharing with coordinated spatial reuse in multi-AP cooperative IEEE 802.11be WLANs
    Nunez, David; Wilhelmi Roca, Francesc; Avallone, Stefano; Smith, M.; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    IEEE 802.11be networks (aka Wi-Fi 7) will have to cope with new bandwidth-hungry and low-latency services such as eXtended Reality and multi-party cloud gaming. With this goal in mind, transmit opportunity (TXOP) sharing ...
  • Usage of network simulators in machine-learning-assisted 5G/6G networks
    Wilhelmi Roca, Francesc; Carrascosa Zamacois, Marc; Cano, Cristina; Jonsson, Anders, 1973-; Ram, Vishnu; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Without any doubt, Machine Learning (ML) will be an important driver of future communications due to its foreseen performance when applied to complex problems. However, the application of ML to networking systems raises ...

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