Cooperative spectrum sensing with ternary local decisions

Dongliang Duan, Liuqing Yang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

By collecting diversity among multiple sensing users, cooperative spectrum sensing can overcome the channel fading effect. Usually, only the local binary decisions are available for sensing cooperation due to the limited channel bandwidth. However, in our previous work, we have shown that this strategy will either compromise diversity or signal-to-noise ratio (SNR) gain. In this paper, we will study cooperative sensing with ternary local decisions. Compared with the binary cooperative sensing, this strategy can reclaim diversity and recover the SNR loss by appropriate threshold selection.

Original languageEnglish (US)
Article number6249700
Pages (from-to)1512-1515
Number of pages4
JournalIEEE Communications Letters
Volume16
Issue number9
DOIs
StatePublished - 2012
Externally publishedYes

Keywords

  • diversity
  • Spectrum sensing
  • ternary decisions

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