Spectrum sensing performance evaluation of bi-threshold detector in Rayleigh and Rician fading environments

Zeeshan Azmat, Asim Loan, Kashif Ashraf, Umar Farooq

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

With recent advances in wireless applications like multimedia applications & rich Web services, spectrum scarcity is increasing with every passing day. The scarcity of spectrum is not due to its rareness; it is mainly due to its inefficient utilization. Cognitive radio is a promising solution to this problem. It is, ideally, an intelligent radio which senses the spectrum and opportunistically transmits if the sensed band happens to be idle. Spectrum sensing by far is the issue of paramount importance in cognitive radio realm. Many schemes have been proposed for spectrum sensing, but still there is a lot of room for efficient algorithms. One of the demerits of the past research work on spectrum sensing is that if some algorithm decreases the number of sensing bits to the central receiver then the sensing performance is also degraded simultaneously. This study mainly focuses on comparing the performance of a censoring method to decrease the bandwidth of control channel in Rayleigh and Rician fading channels.
Original languageEnglish
Title of host publicationProceedings of the 2009 International Conference on the Current Trends in Information Technology
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (Print)9781424457557
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 International Conference on the Current Trends in Information Technology (CTIT) - Dubai, United Arab Emirates
Duration: 15 Dec 200916 Dec 2009

Conference

Conference2009 International Conference on the Current Trends in Information Technology (CTIT)
CityDubai, United Arab Emirates
Period15/12/0916/12/09

Keywords

  • spectrum scarcity
  • cognitive radio
  • spectrum sensing
  • performance evaluation of cesoring method
  • bi-threshold detector
  • Rayleigh and Rician fading channels

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