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2014-03-12 - Article/Dans un journal avec peer-review - Anglais - 7 page(s)

LIMA A.D.D., BARROS C.A., SILVEIRA L.F.Q., XAVIER DE SOUZA S., Valderrama Carlos , "Parallel cyclostationarity-exploiting algorithm for energy-efficient spectrum sensing" in IEICE Transactions on Communications, Volume E97-B, Issue 2, 2014, 326-333, DOI: 10.1587/transcom.E97.B.326

  • Edition : Oxford University Press (United Kingdom)
  • Codes CREF : Sciences de l'ingénieur (DI2000), Techniques d'imagerie et traitement d'images (DI2770), Technologies de l'information et de la communication (TIC) (DI4730), Semi-conducteurs (DI2512), Electronique et électrotechnique (DI2411), Instrumentation médicale (DI2760), Conception assistée par ordinateur (DI1247), Electronique générale (DI2510), Electricité (DI1230)
  • Unités de recherche UMONS : Electronique et Microélectronique (F109)
  • Instituts UMONS : Institut de Recherche en Technologies de l’Information et Sciences de l’Informatique (InforTech), Institut NUMEDIART pour les Technologies des Arts Numériques (Numédiart)
  • Centres UMONS : Centre de Recherche en Technologie de l’Information (CRTI)

Abstract(s) :

(Anglais) The evolution of wireless communication systems leads to Dynamic Spectrum Allocation for Cognitive Radio, which requires reliable spectrum sensing techniques. Among the spectrum sensing methods proposed in the literature, those that exploit cyclostationary characteristics of radio signals are particularly suitable for communication environments with low signal-to-noise ratios, or with non-stationary noise. However, such methods have high computational complexity that directly raises the power consumption of devices which often have very stringent low-power requirements. We propose a strategy for cyclostationary spectrum sensing with reduced energy consumption. This strategy is based on the principle that p processors working at slower frequencies consume less power than a single processor for the same execution time. We devise a strict relation between the energy savings and common parallel system metrics. The results of simulations show that our strategy promises very significant savings in actual devices. Copyright © 2014 The Institute of Electronics, Information and Communication Engineers.

Notes :
  • (Anglais) ISSN: 09168516 CODEN: ITRCESource Type: Journal Original language: English DOI: 10.1587/transcom.E97.B.326Document Type: Article
Identifiants :
  • DOI : 10.1587/transcom.E97.B.326