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Compressed spectrum sensing in the presence of interference: comparison of sparse recovery strategies
dc.contributor.author | Lagunas Targarona, Eva |
dc.contributor.author | Nájar Martón, Montserrat |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2015-04-24T13:34:35Z |
dc.date.created | 2014 |
dc.date.issued | 2014 |
dc.identifier.citation | Lagunas, E.; Najar, M. Compressed spectrum sensing in the presence of interference: comparison of sparse recovery strategies. A: European Signal Processing Conference. "2014 Proceedings of the 22nd European Signal Processing Conference (EUSIPCO): 1-5 September 2014: Lisbon, Portugal". Lisbon: Institute of Electrical and Electronics Engineers (IEEE), 2014, p. 1721-1725. |
dc.identifier.isbn | 978-0-9928626-1-9 |
dc.identifier.uri | http://hdl.handle.net/2117/27585 |
dc.description.abstract | Existing approaches to Compressive Sensing (CS) of sparse spectrum has thus far assumed models contaminated with noise (either bounded noise or Gaussian with known power). In practical Cognitive Radio (CR) networks, primary users must be detected even in the presence of low-regulated transmissions from unlicensed systems, which cannot be taken into account in the CS model because of their non-regulated nature. In [1], the authors proposed an overcomplete dictionary that contains tuned spectral shapes of the primary user to sparsely represent the primary users' spectral support, thus allowing all frequency location hypothesis to be jointly evaluated in a global unified optimization framework. Extraction of the primary user frequency locations is then performed based on sparse signal recovery algorithms. Here, we compare different sparse reconstruction strategies and we show through simulation results the link between the interference rejection capabilities and the positive semidefinite character of the residual autocorrelation matrix. |
dc.format.extent | 5 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal |
dc.subject.lcsh | Cognitive radio |
dc.subject.lcsh | Signal processing |
dc.subject.other | Cognitive radio |
dc.subject.other | Compressed sensing |
dc.subject.other | Interference suppression |
dc.subject.other | Radio spectrum management |
dc.subject.other | Signal detection |
dc.title | Compressed spectrum sensing in the presence of interference: comparison of sparse recovery strategies |
dc.type | Conference report |
dc.subject.lemac | Ràdio cognitiva |
dc.subject.lemac | Tractament del senyal |
dc.contributor.group | Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6952624 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 15576953 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Lagunas, E.; Najar, M. |
local.citation.contributor | European Signal Processing Conference |
local.citation.pubplace | Lisbon |
local.citation.publicationName | 2014 Proceedings of the 22nd European Signal Processing Conference (EUSIPCO): 1-5 September 2014: Lisbon, Portugal |
local.citation.startingPage | 1721 |
local.citation.endingPage | 1725 |