Adaptive blind wideband spectrum sensing for cognitive radio based on sub-Nyquist sampling technique

M. Mourad Mabrook, Ghazal A. Fahmy, Aziza I. Hussein, M. A. Abdelghany

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Spectrum sensing is the core process in cognitive radio networks. Spectrum sensing of wideband signal results in enhancement of system reliability and effectiveness. In this paper, a modified system of wideband spectrum sensing based on non-uniform Multi-coset samplers is proposed. The proposed system is designed to work on totally blind input wideband signal. Lomb-Scargle periodogram is used to detect the number of active bands (N). System parameters are selected to decrease the average sub-Nyquist sampling frequency that results in activating lower number of parallel branches of non-uniform samplers. Then, a lower power consumption and complexity is achieved. The proposed system is able to adapt its operating parameters, time offsets and number of active branches continuously. Simulation results show accurate reconstructed signal, high probability of detection and low errors even at a small number of sub-Nyquist samples and low SNR.

Original languageEnglish
Title of host publicationICM 2016 - 28th International Conference on Microelectronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages141-144
Number of pages4
ISBN (Electronic)9781509057214
DOIs
StatePublished - 2 Jul 2016
Externally publishedYes
Event28th International Conference on Microelectronics, ICM 2016 - Giza, Egypt
Duration: 17 Dec 201620 Dec 2016

Publication series

NameProceedings of the International Conference on Microelectronics, ICM
Volume0

Conference

Conference28th International Conference on Microelectronics, ICM 2016
Country/TerritoryEgypt
CityGiza
Period17/12/1620/12/16

Keywords

  • adaptive multi-coset sampling
  • blind sensing
  • sub-Nyquist sampling
  • wideband spectrum sensing

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