System architecture in cognitive radio networks using a radio environment map
Document typeConference report
Rights accessOpen Access
Cognitive Radio (CR) is considered as a promising solution to improve wireless spectrum utilization. Moreover, through optimization frameworks, Radio Resource Management (RRM) procedures are designed to enhance the efficient utilization of resources in CR networks. To face this issue in a holistic perspective, the RRM solutions should take into account not only the optimization task but also their impact on the design task. Thus, in this paper, a system architecture of a novel RRM is proposed for CR networks. In particular, it is fundamental to construct flexible systems to work across heterogeneous systems and help realize their full potential. Therefore, in the proposed system, heterogeneous Primary Users (PUs) with multiple features and variable CR demands are considered. A Radio Environment Map (REM) is used to obtain the required PU features, which are exploited to improve the adaptability in CR networks and, thus, to design an efficient Cognitive RRM. The functionalities of the network elements are described in detail, along with the message exchange to carry out the resource management.
CitationVizziello, A.; Pérez-Romero, J. System architecture in cognitive radio networks using a radio environment map. A: International Conference on Cognitive Radio and Advanced Spectrum Management. "4th International Conference on Cognitive Radio and Advanced Spectrum Management (CogART)". Barcelona: 2011, p. 1-5.
Aquest ítem (excepte textos i imatges no creats per l'autor) està subjecte a una llicència de Creative Commons: Attribution-NonCommercial-NoDerivs 3.0 Spain
Showing items related by title, author, creator and subject.
Joham, Michael; Gründinger, Andreas; Pastore, Adriano; Rodríguez Fonollosa, Javier; Utschick, Wolfgang (2013)
Restricted access - publisher's policyFor the vector broadcast channel (BC), the case of erroneous channel state information (CSI) at the receiver is considered. Employing a well established lower bound for the mutual information with Gaussian signaling, a ...
Miliotis, Vasileios; Koutsopoulos, Iordanis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (VDE Conference Publications, 2014)
Restricted access - publisher's policyCognitive Radio (CR) has matured as a research field and has the goal to improve the utilization of spectrum. This technology enables a CR user to function in unlicensed or licensed bands without causing interference to ...
Contreras Lizarraga, Adrián Arturo; Casals Terré, Jasmina; Pradell i Cara, Lluís; Colpo, Sabrina; Iannacci, Jacopo; Ribó, Miquel; Giacomozzi, Flavio (2012)
Open AccessThis work shows experimental results of capacitive and ohmic RF-MEMS switches with low actuation voltage. The isolation of capacitive switches is better than 20 dB from 15 GHz and up to 80 GHz according to simulations. ...