23 research outputs found
DVB-T channels power measurements in indoor/outdoor cases
In this paper the analysis of the spectrum
occupancy in the TV band is provided based on the indoor and
outdoor measurements campaigns carried out in Poznan, Poland,
and Barcelona, Spain, in 2013. The goal of this work is to discuss
the stability and other important features of the observed
spectrum occupancy in the context of indoor/outdoor Radio
Environment Maps database deployment. Reliable deployment of
these databases seems to be one of the critical points in practical
utilization of the TV White Spaces for cognitive purposes inside
buildings and in densely populated cities.Postprint (published version
D13.2 Techniques and performance analysis on energy- and bandwidth-efficient communications and networking
Deliverable D13.2 del projecte europeu NEWCOM#The report presents the status of the research work of the
various Joint Research Activities (JRA) in WP1.3 and the results
that were developed up to the second year of the project. For
each activity there is a description, an illustration of the
adherence to and relevance with the identified fundamental
open issues, a short presentation of the main results, and a
roadmap for the future joint research. In the Annex, for each
JRA, the main technical details on specific scientific activities
are described in detail.Peer ReviewedPostprint (published version
Experimental Spectrum Sensing Measurements using USRP Software Radio Platform and GNU-Radio
International audienceIn cognitive radio, the secondary users are able to sense the spectral environment and use this information to opportunistically access the licensed spectrum in the absence of the primary users. In this paper, we present an experimental study that evaluates the performance of two different spectrum sensing techniques to detect primary user signals in real environment. The considered spectrum sensing techniques are: sequential energy and cyclosationary feature based detectors. An Universal Software Radio Peripheral platform with GNU-Radio is employed for implementation purpose. We analyzed the performances of both spectrum sensing methods by measuring the detection probabilities as a function of SNR for a given false alarm probability. As predicted theoretically, experimental measurements show that the cyclostationnary feature detector performs better than the sequential energy detector. However sequential energy detector can be used for reduction of sensing time in the presence of strong signals
DVB-T channels power measurements in indoor/outdoor cases
In this paper the analysis of the spectrum
occupancy in the TV band is provided based on the indoor and
outdoor measurements campaigns carried out in Poznan, Poland,
and Barcelona, Spain, in 2013. The goal of this work is to discuss
the stability and other important features of the observed
spectrum occupancy in the context of indoor/outdoor Radio
Environment Maps database deployment. Reliable deployment of
these databases seems to be one of the critical points in practical
utilization of the TV White Spaces for cognitive purposes inside
buildings and in densely populated cities
DVB-T channels measurements for the deployment of outdoor REM databases
In this paper the analysis of the spectrum occupancy in the TV band is provided based on the outdoor measurements campaigns carried out in Poznan, Poland in 2013 and 2014. The goal of this work is to discuss the stability and other important features of the observed spectrum occupancy in the context of outdoor Radio Environment Maps database deployment. Reliable deployment of these databases seems to be one of the critical points in practical utilization of the TV White Spaces for cognitive purposes inside buildings and in densely populated cities. The results obtained for outdoor scenario are briefly compared with the previous measurements conducted indoors in Barcelona, Spain, and in Poznan, Poland.Peer Reviewe
DVB-T channels measurements for the deployment of outdoor REM databases
In this paper the analysis of the spectrum occupancy in the TV band is provided based on the outdoor measurements campaigns carried out in Poznan, Poland in 2013 and 2014. The goal of this work is to discuss the stability and other important features of the observed spectrum occupancy in the context of outdoor Radio Environment Maps database deployment. Reliable deployment of these databases seems to be one of the critical points in practical utilization of the TV White Spaces for cognitive purposes inside buildings and in densely populated cities. The results obtained for outdoor scenario are briefly compared with the previous measurements conducted indoors in Barcelona, Spain, and in Poznan, Poland.Peer ReviewedPostprint (published version
DVB-T channels measurements for the deployment of outdoor REM databases
The goal of this work is to discuss the stability and other important features of the observed spectrum occupancy in the context of outdoor Radio Environment Maps database deployment. Reliable deployment of these databases seems to be one of the critical points in practical utilization of the TV White Spaces for cognitive purposes inside buildings and in densely populated cities. The results obtained for outdoor scenario are briefly compared with the previous measurements conducted indoors in Barcelona, Spain, and in Poznan, Poland.Peer ReviewedPostprint (published version
DVB-T channels measurements for the deployment of outdoor REM databases
In this paper the analysis of the spectrum occupancy in the TV band is provided based on the outdoor measurements campaigns carried out in Poznan, Poland in 2013 and 2014. The goal of this work is to discuss the stability and other important features of the observed spectrum occupancy in the context of outdoor Radio Environment Maps database deployment. Reliable deployment of these databases seems to be one of the critical points in practical utilization of the TV White Spaces for cognitive purposes inside buildings and in densely populated cities. The results obtained for outdoor scenario are briefly compared with the previous measurements conducted indoors in Barcelona, Spain, and in Poznan, Poland.Peer Reviewe
DVB-T channels measurements for the deployment of outdoor REM databases
The goal of this work is to discuss the stability and other important features of the observed spectrum occupancy in the context of outdoor Radio Environment Maps database deployment. Reliable deployment of these databases seems to be one of the critical points in practical utilization of the TV White Spaces for cognitive purposes inside buildings and in densely populated cities. The results obtained for outdoor scenario are briefly compared with the previous measurements conducted indoors in Barcelona, Spain, and in Poznan, Poland.Peer Reviewe