Now showing items 1-20 of 109

    • A channel allocation algorithm for OSA-Enabled IEEE 802.11 WLANs 

      Novillo Parales, Francisco Vicente; Churchman, Mathew; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2009-09)
      Conference report
      Open Access
      Channel allocation problem is a major challenge in wireless local area networks (WLANs), especially in dense deployments of access points (APs) where congestion of the unlicensed spectrum bands (i.e., ISM bands) could ...
    • A channel allocation algorithm for OSA-Enabled IEEE 802.11 WLANs 

      Novillo Parales, Francisco Vicente; Churchman, Mathew; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2009)
      Conference report
      Open Access
      Channel allocation problem is a major challenge in wireless local area networks (WLANs), especially in dense deployments of access points (APs) where congestion of the unlicensed spectrum bands (i.e., ISM bands) could ...
    • A cloud-enabled small cell architecture in 5G networks for broadcast/multicast services 

      kourtis, Michail-Alexandros; Blanco, Begoña; Pérez Romero, Jordi; Makris, Dimitris; McGrath, Michael J.; Xilouris, George; Munaretto, Daniele; Solozabal, Ruben; Sanchoyerto, Aitor; Giannoulakis, Ioannis; Kafetzakis, Emmanouil; Riccobene, Vincenzo; Jimeno, Elisa; Kourtis, Anastasios; Ferrús Ferré, Ramón Antonio; Liberal, Fidel; Koumaras, Harilaos; Kostopoulos, Alexandros; Chochliouros, Ioannis (2019-06-01)
      Article
      Open Access
      The evolution of 5G suggests that communication networks become sufficiently flexible to handle a wide variety of network services from various domains. The virtualization of small cells as envisaged by 5G, allows enhanced ...
    • A real time emulator of the UMTS lower layers for the wineglass demonstrator 

      Gelonch Bosch, Antonio José; Revés Ballesté, Xavier; Umbert Juliana, Anna; Ferrús Ferré, Ramón Antonio; Casadevall Palacio, Fernando José (European Commission, 2000)
      Conference report
      Open Access
      In this paper, a general description of the main features of a Real Time Emulator, which emulates the lower layers of the UMTS Radio Access system, is presented. For the physical layer, the emulation model is based on the ...
    • A robustness analysis of learning-based coexistence mechanisms for LTE-U operation in non-stationary conditions 

      Pérez Romero, Jordi; Sallent Roig, José Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      The use of Long Term Evolution (LTE) in the unlicensed 5 GHz band, referred to as LTE-U, is a promising enhancement to increase the capacity of LTE networks and meet the requirements of future systems. This paper considers ...
    • A solution framework to provide management services for wireless communications in the digital home 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2012-11)
      Article
      Restricted access - publisher's policy
      The future digital home (DH) is envisioned as a place where a plethora of diverse personal and machine-to-machine communications will coexist to support different applications in areas such as information and ...
    • A taxonomy and survey of SCTP research 

      Budzisz, Lukasz; Garcia, Johan; Brunstrom, Anna; Ferrús Ferré, Ramón Antonio (2012-08)
      Article
      Restricted access - publisher's policy
      The Stream Control Transmission Protocol (SCTP) is a relatively recent general-purpose transport layer protocol for IP networks that has been introduced as a complement to the well-established TCP and UDP transport protocols. ...
    • A traffic distribution scheme for 5G resilient backhauling using integrated satellite networks 

      Mendoza, Fabián; Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      Resilience and high availability are being considered as essential requirements in 5G networks. To fullfil these requirements, the integration of a satellite component within mobile backhaul networks is regarded as a ...
    • Admission control for multi-tenant radio access networks 

      Pérez Romero, Jordi; Sallent Roig, José Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2017)
      Conference report
      Restricted access - publisher's policy
      The sharing of Radio Access Networks is gaining momentum in small cell scenarios, due to the associated reduction in capital and operational costs. In this scenario, the split of radio resources among tenants sharing the ...
    • Alternativas de despliegue y asignación de espectro para las redes radio de emergencia de banda ancha 

      Cerrato, Javier Alonso; Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol (2015-07-01)
      Article
      Open Access
      La definición e implementación de una solución de banda ancha móvil que satisfaga las necesidades operativas de los cuerpos de seguridad pública y de emergencias (PPDR – Public Protection and Disaster Relief) es esencial ...
    • Analytical modeling and performance evaluation of cell selection algorithms for mobile networks with backhaul capacity constraints 

      Olmos Bonafé, Juan José; Ferrús Ferré, Ramón Antonio; Galeana Zapién, Hiram (2013-10-28)
      Article
      Restricted access - publisher's policy
      Wireless communications technologies play an essential role to support the Public Protection and Disaster Relief (PPDR) operational needs. The current Private/Professional Mobile Radio (PMR) technologies used for PPDR ...
    • Applicability domains of machine learning in next generation radio access networks 

      Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
    • Artificial intelligence-based 5G network capacity planning and operation 

      Pérez Romero, Jordi; Sallent Roig, José Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      The highly demanding requirements envisaged for future 5G networks together with the required support of new customers from vertical industries (e.g. e-health, automotive, energy) pose a big challenge for operators ...
    • Business scenarios, technical challenges and system requirements - D2.1 

      Ferrús Ferré, Ramón Antonio; Moreno, Oscar; Visiedo, David; Urdiales, Diego; Santiago, Miquel Angel; Gebert, Jens; Mouton, Christian; Lange, Christian; Merat, Vincent; Bender, Paul; Wich, Andreas; Agustí Comes, Ramon; Muck, Markus; Schmmidt, Andreas; Logothetis, Marios; Akezidou, Maria; Tzifa, Lia; Tsagkaris, Kostas; Stavroulaki, Vera; Demestichas, Panagiotis; Matinmikko, Marja; Mustonen, Miia; Sallent Roig, José Oriol; Pérez Romero, Jordi; Georgakopoulos, Andreas; Pecelj, Ilija; Boskovic, Dragan; Tosic, M.; Filo, Marcin; Piesiewicz, Radoslaw; Kritikou, Yiouli; Bantouna, Aimilia; Thomatos, Evangelos; Koutsouris, Nikos (2010-11)
      External research report
      Open Access
    • Channel assignment algorithms for OSA-Enabled WLANs exploiting prioritization and spectrum heterogeneity 

      Novillo Parales, Francisco Vicente; Ferrús Ferré, Ramón Antonio (2012-04)
      Article
      Restricted access - publisher's policy
      Allowing WLANs to exploit opportunistic spectrum access (OSA) is a promising approach to alleviate spectrum congestion problems in overcrowded unlicensed ISM bands, especially in highly dense WLAN deployments. In this ...
    • Cognitive control channels for the cooperation of opportunistic and composite wireless networks 

      Gebert, Jens; Georgakopoulos, Andreas; Stavroulaki, Vera; Tsagkaris, Kostas; Ferrús Ferré, Ramón Antonio; Demestichas, Panagiotis (2011)
      Conference report
      Open Access
      Opportunistic networks (ONs) are considered as coordinated extensions of a radio access network infrastructure, which are dynamically and temporarily created in an infrastructure-less manner in order to increase service ...
    • Cognitive control channels: from concept to identification of implementation options 

      Stavroulaki, Vera; Tsagkaris, Kostas; Demestichas, Panagiotis; Gebert, Jens; Mueck, Markus; Schmidt, Andreas; Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol; Filo, Marcin; Mouton, Christian; Rakotoharison, Lanto (2012-07)
      Article
      Restricted access - publisher's policy
      Recent effort related to cognitive radio systems has lead to an in-depth analysis of context information management and exploitation based on a cognitive control channel for enhancement of management needed for, ...
    • Contribución a la caracterización de los mecanismos de acceso y traspaso en sistemas móviles celulares basados en transmisión de paquetes 

      Ferrús Ferré, Ramón Antonio (Universitat Politècnica de Catalunya, 2000-01-19)
      Doctoral thesis
      Open Access
      La estandarización del esquema de acceso radio para los futuros sistemas de telecomunicación está a punto de ser una realidad. En el calendario propuesto por ITU para llevar a cabo la elaboración del estándar, se prevé que ...
    • Control channels for the cooperation of cognitive management systems in opportunistic and composite wireless networks 

      Stavroulaki, Vera; Tsagkaris, Kostas; Georgakopoulos, Andreas; Demestichas, Panagiotis; Ferrús Ferré, Ramón Antonio; Filo, Marcin (2011)
      Conference report
      Open Access
      Opportunistic Networks (ONs) are assumed to be temporary, localized extensions of the infrastructure network that are created under certain circumstances. According to that vision, ONs are coordinated by the radio ...
    • Cross-layer schedulling strategy for UMTS downlink enhancement 

      Ferrús Ferré, Ramón Antonio; Alonso Zárate, Luis Gonzaga; Umbert Juliana, Anna; Revés Ballesté, Xavier; Pérez Romero, Jordi; Casadevall Palacio, Fernando José (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-06)
      Article
      Open Access
      This article describes the benefits of including cross-layer information in the scheduling mechanism of a UMTS downlink channel. In particular, the information obtained from the fast power control algorithm is used to ...