%0 Conference Proceedings
%T Channel Availability Assessment for Cognitive Radios
%+ Instituto de Telecomunicações [Lisboa, Portugal]
%+ ISR, Instituto de Sistemas e Robótica
%+ Universidade de Lisboa = University of Lisbon (ULISBOA)
%A Furtado, António
%A Luís, Miguel
%A Oliveira, Rodolfo
%A Dinis, Rui
%A Bernardo, Luis
%Z Part 17: Telecommunications
%< avec comité de lecture
%( IFIP Advances in Information and Communication Technology
%B 4th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS)
%C Costa de Caparica, Portugal
%Y Luis M. Camarinha-Matos
%Y Slavisa Tomic
%Y Paula Graça
%I Springer
%3 Technological Innovation for the Internet of Things
%V AICT-394
%P 495-504
%8 2013-04-15
%D 2013
%R 10.1007/978-3-642-37291-9_53
%K Cognitive radio networks
%K Energy Sensing
%K System Analysis
%Z Computer Science [cs]Conference papers
%X This work addresses two problems related with the assessment of channel availability for cognitive radio systems. We start to characterize the performance of an energy detector for the case when PUs can change their state during the sensing period. The theoretical performance is validated through simulations and compared with a theoretical model where the PUs’ state remains constant during the sensing period. The second point addressed in this work is the characterization of the channel availability, which is based on the output of the energy detector weighted by the probabilities of detection or false alarm computed in real-time. Several scenarios were evaluated and for each scenario the channel availability was correctly assessed by the SUs.
%G English
%Z TC 5
%Z WG 5.5
%2 https://hal.science/hal-01348795/document
%2 https://hal.science/hal-01348795/file/978-3-642-37291-9_53_Chapter.pdf
%L hal-01348795
%U https://hal.science/hal-01348795
%~ IFIP
%~ IFIP-AICT
%~ IFIP-TC
%~ IFIP-TC5
%~ IFIP-WG
%~ IFIP-WG5-5
%~ IFIP-DOCEIS
%~ IFIP-AICT-394