Bezerra Rodrigues, Emanuel
Total activity: 4
Research group
GRCM - Mobile Communication Reserach Group
Department
Department of Signal Theory and Communications
E-mail
emanuel.bezerraestudiant.upc.edu
Contact details
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Scientific and technological production
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1 to 4 of 4 results
  • Capacity, fairness, and QoS trade-offs in wireless networks with applications to LTE

     Bezerra Rodrigues, Emanuel; Lima, Francisco J. M.; Casadevall Palacio, Fernando-jose; Cavalcanti, Rodrigo
    Date of publication: 2013-11-01
    Book chapter

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  • Optimal distributed frequency planning for OFDMA femtocell networks

     Bezerra Rodrigues, Emanuel; Casadevall Palacio, Fernando-jose
    IEEE International Symposium on Personal Indoor and Mobile Radio Communications
    Presentation's date: 2013-09-08
    Presentation of work at congresses

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    Femtocell networks have gained momentum due to their important benefits, such as improved indoor coverage, higher areal spectral efficiency, enhanced signal quality, among others. Those benefits are only achievable if adequate deployment decisions and efficient resource allocation techniques are able to assure the seamless co-existence among Femtocell Access Points (FAPs) within the femtocell tier and between FAPs and macrocell users. In this work, we study the frequency planning problem on the femtocell tier deployed on a closed access mode and using a dedicated spectrum. A novel radio resource allocation technique that performs a mid/long-term requency planning for the FAPs in the femtocell tier is proposed. It is concluded in this paper that the Dynamic Frequency Planning (DFP) algorithm based on the Branch and Bound technique is able to find the optimal frequency planning according to any desired criterion and that the proposed algorithm is suitable for implementation in a distributed 4G femtocell network regarding signaling overhead and latency aspects.

  • Rate adaptive resource allocation with fairness control for OFDMA networks

     Bezerra Rodrigues, Emanuel; Casadevall Palacio, Fernando-jose
    European Wireless Conference
    Presentation's date: 2012-04-18
    Presentation of work at congresses

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    The use of opportunistic radio resource allocation techniques in order to efficiently manage the resources generates a low fairness among the users in a cellular system due to uneven Quality of Service (QoS) distribution. Some classic rate adaptive policies tried to tackle this problem for OFDMA systems by proposing solutions to maximize capacity, maximize fairness, or find a static trade-off between these two objectives. This work generalizes these classic policies and propose a dynamic fairness/rate adaptive technique based on dynamic sub-carrier assignment and equal power allocation that considers a new fairness constraint in the optimization problem. By means of extensive system-level simulations, it is demonstrated that the proposed technique is able to provide an instantaneous (short-term) fairness control, which provides to the network operator the flexibility to operate on any desired trade-off point.

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    DR9.3 Final report of the JRRM and ASM activities  Open access

     Pérez Romero, Jordi; Serrador, António; Caeiro, Luisa; Correia, Luis; Moretti, Marco; Bezerra Rodrigues, Emanuel; Sroka, Pawel; Bogucka, Hanna; López Benítez, Miguel; Umbert Juliana, Anna; Casadevall Palacio, Fernando-jose; Jouini, Wassim; Palicot, Jacques; Moy, Christophe; Kliks, Adrian; Debbah, Merouane
    Date: 2010-12
    Report

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    This deliverable provides the final report with the summary of the activities carried out in NEWCOM++ WPR9, with a particular focus on those obtained during the last year. They address on the one hand RRM and JRRM strategies in heterogeneous scenarios and, on the other hand, spectrum management and opportunistic spectrum access to achieve an efficient spectrum usage. Main outcomes of the workpackage as well as integration indicators are also summarised.

    Deliverable del projecte europeu NEWCOM++