ALRT-based energy detection using uniform noise distribution

Kezhi Wang*, Yunfei Chen, Jiming Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Energy detection is widely used in cognitive radio due to its low complexity. One fundamental challenge is that its performance degrades in the presence of noise uncertainty, which inevitably occurs in practical implementations. In this work, three novel detectors based on uniformly distributed noise uncertainty as the worst-case scenario are proposed. Numerical results show that the new detectors outperform the conventional energy detector with considerable performance gains.

Original languageEnglish
Pages (from-to)1009-1017
Number of pages9
JournalWireless Communications and Mobile Computing
Volume16
Issue number9
Early online date26 Feb 2015
DOIs
Publication statusPublished - 25 Jun 2016
Externally publishedYes

Keywords

  • average likelihood ratio test
  • cognitive radio
  • energy detection
  • noise uncertainty

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