DSpace DSpace UPC
  Pàgina principal | Llistar continguts | Cerca avançada | Com participar-hi Català   Castellano   English  


Títol: Exploiting knowledge management for supporting spectrum selection in cognitive radio networks
Autor: Pérez Romero, Jordi
Bouali, Faouzi
Sallent Roig, José Oriol
Agustí Comes, Ramon
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Telemàtica i xarxes d'ordinadors::Serveis telemàtics i de comunicació multimèdia
Telecommunication systems
Telecomunicació, Sistemes de
Tipus de document: Conference lecture
Descripció: Abstract—In order to increase Cognitive Radio operation efficiency, this paper builds up a new knowledge management functional architecture for supporting spectrum management. It integrates the fittingness factor concept proposed by the authors in a prior work and includes a set of advanced statistics capturing the influence of the radio environment. Then, a Knowledge Manager (KM) exploiting these statistics and observed fittingness factor values has been developed to monitor the time-varying suitability of spectrum resources to support heterogeneous services. Based on estimated suitability levels, a new strategy combining Spectrum Selection (SS) and Spectrum Mobility (SM) functionalities has been proposed. Results have shown that the proposed strategy efficiently exploits the KM support at low loads and the SM functionality at high loads to introduce significant gains (ranging from 85% to 100%) w.r.t. a pure random selection while exhibiting substantial robustness to changes in interference levels.
Altres identificadors i accés: Pérez-Romero, J. [et al.]. Exploiting knowledge management for supporting spectrum selection in cognitive radio networks. A: International Conference on Cognitive Radio Oriented Wireless Networks. "7th International Conference on Cognitive Radio Oriented Wireless Networks conference proceedings". Estocolm: 2012, p. 1-6.
http://hdl.handle.net/2117/16741
http://dx.doi.org/10.4108/icst.crowncom.2012.248148
Disponible al dipòsit:E-prints UPC
Comparteix:


SFX Query

Tots els ítems dipositats a UPCommons estan protegits per drets d'autor.

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius