Cooperative and noncooperative spectrum sensing techniques using Welch's periodogram in cognitive radios

Heli Sarvanko, Miia Mustonen, Atso Hekkala, Aarne Mämmelä, Marja Matinmikko, Marcos Katz

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

29 Citations (Scopus)

Abstract

Radio spectrum deployment is growing considerably. With this respect finding unutilized frequency channels for new applications has become much more challenging. The problem can be solved by letting unlicensed systems to dynamically use unexploited licensed bands. This kind of flexible spectrum usage requires telecommunication systems to be equipped by an ability to specify unoccupied parts of radio spectrum. One method to identify temporarily unused parts of radio spectrum is spectrum sensing. In this paper, we focus on spectrum sensing using Welch's periodogram. In particular, we generalize and apply the theoretical analysis of the energy detection to the Welch's periodogram. Furthermore, we extend our study to cooperative spectrum sensing. The results indicate that the cooperation between two radios provides the highest cooperation gain.
Original languageEnglish
Title of host publication2008 First International Workshop on Cognitive Radio and Advanced Spectrum Management
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages1-5
ISBN (Electronic)978-1-4244-2140-4
ISBN (Print)978-1-4244-2139-8
DOIs
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
EventFirst IEEE International Workshop on Cognitive Radio and Advanced Spectrum Management, IEEE CogART'08 - Aalborg, Denmark
Duration: 14 Feb 200814 Feb 2008
Conference number: 1

Workshop

WorkshopFirst IEEE International Workshop on Cognitive Radio and Advanced Spectrum Management, IEEE CogART'08
Abbreviated titleIEEE CogART'08
CountryDenmark
CityAalborg
Period14/02/0814/02/08

Keywords

  • cognitive radio
  • power control
  • spatial databases
  • radiofrequency identification
  • spectrum sensing techniques
  • wireless channels

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    Sarvanko, H., Mustonen, M., Hekkala, A., Mämmelä, A., Matinmikko, M., & Katz, M. (2008). Cooperative and noncooperative spectrum sensing techniques using Welch's periodogram in cognitive radios. In 2008 First International Workshop on Cognitive Radio and Advanced Spectrum Management (pp. 1-5). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/COGART.2008.4509987