Browsing by Subject "Ràdio cognitiva"
Now showing items 1-20 of 80
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241. Quan la vocació científica germina: la recerca jove
(Oficina de Mitjans de Comunicació, 2011-05)
Article
Open Access -
A belief-based decision-making framework for spectrum selection in cognitive radio networks
(2015-12-17)
Article
Open AccessThis paper presents a comprehensive cognitive management framework for spectrum selection in cognitive radio networks. The framework uses a belief vector concept as a means to predict the interference affecting the different ... -
A cognitive management framework for spectrum selection
(2013-10-04)
Article
Restricted access - publisher's policyTo increase cognitive radio (CR) operation efficiency, there has been an interest in enhancing the awareness level of spectrum utilization. In this context, this paper builds a new cognitive management functional architecture ... -
A fittingness factor-based spectrum management framework for cognitive radio networks
(2013-03)
Article
Restricted access - publisher's policyIn order to increase cognitive radios (CRs) operation efficiency, there has been an increasing interest in strengthening awareness level about spectrum utilisation. In this respect, this paper proposes to exploit the ... -
A framework based on a fittingness factor to enable efficient exploitation of spectrum opportunities in cognitive radio networks
(2011)
Conference report
Open AccessIn order to increase CRs (Cognitive Radios) operation efficiency, there has been an interest in increasing awareness level about spectrum utilisation. In this respect, this paper proposes a new fittingness factor concept ... -
A framework for multidimensional modelling of spectrum occupancy in the simulation of cognitive radio systems
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Restricted access - publisher's policySpectrum models play a key role in the research of Dynamic Spectrum Access/Cognitive Radio (DSA/CR) systems. Models existing to date are able to characterise the statistical properties of spectrum occupancy in only one ... -
A novel spectrum selection strategy for matching multi-service secondary traffic to heterogeneous primary spectrum opportunities
(IEEE, 2011)
Conference report
Restricted access - publisher's policyIn order to increase spectrum utilization efficiency, CRs (Cognitive Radios) have been introduced to reuse white spaces left unused by legacy services under the strict constraint of not interfering them. In this context, ... -
ALOE: an open-source SDR execution environment with cognitive computing resource management capabilities
(2011-09)
Article
Restricted access - publisher's policyFuture radio transceivers will offer more functionalities and system features for potentiating flexible and reconfigurable radio access networks. Since flexibility in this case comes at a price of computing resource overhead, ... -
An agent-based simulation model of a market for dynamic spectrum access
(2011)
Conference report
Restricted access - publisher's policyThe dramatic increase in the demand for spectrum-based services and devices, combined with the long-term exclusive model of spectrum management, has led to an apparent spectrum scarcity. To overcome this scarcity, the ... -
An experimental assessment of channel selection in cognitive radio networks
(Springer, 2018)
Conference report
Open AccessThe management of future networks is expected to fully exploit cognitive capabilities that embrace knowledge and intelligence, increasing the degree of automation, making the network more self-autonomous and enabling a ... -
An opportunistic cognitive radio communication through the exploitation of the small-scale fading mechanisms of the LTE mobile channel
(2013)
Article
Open AccessIn recent years, the cognitive radio technology has attracted the attention of all the players in the telecommunication field (i.e., researchers, industry, service providers, and regulatory agencies) as a way of facing the ... -
Analyzing the effect of power control algorithms on the receiver's computing resource consumption
(2010)
Conference report
Restricted access - publisher's policyTraditional Software-Defined Radios are limited in their ability to share the computational infrastructure between different channel flows of different demands. Future terminals should move to a shared resource model to ... -
Automation Platform for Radio Spectrum Measures
(Universitat Politècnica de Catalunya, 2014-06)
Bachelor thesis
Open Access[ANGLÈS] Spectrum analyzers are one of the most powerful equipment to study radio communications systems. Nowadays, due to the expansion of these systems with the consequent growth of traffic demand it is basic to study ... -
Caracterización indoor y ampliación de un rem (radio enviroment map) en el campus nord de la UPC
(Universitat Politècnica de Catalunya, 2015-02)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] Currently the radio spectrum is almost entirely assigned or licensed to different operators. However, from the rise of wireless technologies in the last decade, different studies conducted independently in different ... -
Characterization and exploitation of heterogeneous OFDM primary users in cognitive radio networks
(2013-08)
Article
Restricted access - publisher's policy -
Characterizing WLAN channel occupancy for cognitive networking
(Universitat Politècnica de Catalunya, 2012-07-30)
Master thesis
Open AccessThe deployment of heterogeneous wireless networks in the same spectrum space introduces the need for dynamic spectrum access so as to increase the utilization of the available wireless resources. Dynamic spectrum access ... -
Cognitive control channels: from concept to identification of implementation options
(2012-07)
Article
Restricted access - publisher's policyRecent 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, ... -
Cognitive radio resource management exploiting heterogeneous primary users and a radio environment map database
(2013-08)
Article
Restricted access - publisher's policyThe efficient utilization of radio resources is a fundamental issue in cognitive radio (CR) networks. Thus, a novel cognitive radio resource management (RRM) is proposed to improve the spectrum utilization efficiency. ... -
Cognitive resource management: for all wireless access layers
(2012)
Article
Restricted access - publisher's policy -
Compressed correlation-matching for spectrum sensing in sparse wideband regimes
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Conference lecture
Restricted access - publisher's policyIn this paper, we consider a novel compressed correlation-matching (CCM) approach for spectrum sensing of wideband sparse signals. We derive a general closed-form estimate of the wideband sparse signal level from compressed ...
