Spectrum Sensing for Cognitive Femto Base Stations Using Welch Periodogram

Ilkka Harjula, Atso Hekkala

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

11 Citations (Scopus)

Abstract

Reliable spectrum sensing is one of the key technologies for enabling cognitive communications. In this paper, spectrum sensing based on Welch periodogram is applied to a femtocell scenario where cognitive femto base station (FBS) is located in the same frequency band as the surrounding macrocell and neighboring femtocells. Parameters for the femtocell simulations are selected based on 3G Partnership Project (3GPP) contributions to tie this work to on-going femtocell standardization work. Different interference scenarios are also discussed. Spectrum sensing based on Welch periodogram is presented, and two scenarios including a user equipment (UE) located indoor and outdoor are selected for further study. The results, given as receiver operation characteristic (ROC) curves, clarify the practical regions inside of which spectrum sensing is capable of providing reliable results for sensing the presence of the MUE.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011
Place of PublicationPiscataway, NJ, USA
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages2305-2309
ISBN (Electronic)978-1-4577-1348-4
ISBN (Print)978-1-4577-1346-0
DOIs
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
Event22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011 - Toronto, ON, Canada
Duration: 11 Sep 201114 Sep 2011
Conference number: 22

Conference

Conference22nd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011
Abbreviated titlePIMRC 2011
CountryCanada
CityToronto, ON
Period11/09/1114/09/11

Keywords

  • femtocell
  • LTE
  • cognitive radio
  • spectrum sharing
  • interference avoidance

Fingerprint Dive into the research topics of 'Spectrum Sensing for Cognitive Femto Base Stations Using Welch Periodogram'. Together they form a unique fingerprint.

  • Cite this

    Harjula, I., & Hekkala, A. (2011). Spectrum Sensing for Cognitive Femto Base Stations Using Welch Periodogram. In Proceedings: IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2011 (pp. 2305-2309). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/PIMRC.2011.6139930