Analysis of coloured noise in received signal strength using the Allan Variance

Chunbo Luo, Pablo Casaseca-De-La-Higuera, Sally McClean, Gerard Parr, Christos Grecos

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

5 Citations (Scopus)

Abstract

The received signal strength (RSS) of wireless signals has been widely used in communications, localization and tracking. Theoretical modelling and practical applications often make a white noise assumption when dealing with RSS measurements. However, as we will show in this paper, the noise present in RSS measurements has time-dependency properties. In order to study these properties and provide noise characterisation, we propose to use the Allan Variance (AVAR) and show its better performance in comparison with direct analysis in the frequency domain using a periodogram. We further study the contribution of each component by testing real RSS data. Our results confirm that the noise associated with RSS signals is actually coloured and demonstrate the appropriateness of AVAR for the identification and characterisation of these components.

Original languageEnglish
Title of host publicationEuropean Signal Processing Conference
PublisherEuropean Signal Processing Conference, EUSIPCO
Pages994-998
Number of pages5
ISBN (Print)9780992862619, 2219-5491
Publication statusPublished - 10 Nov 2014
Event22nd European Signal Processing Conference, EUSIPCO 2014 - Lisbon, Portugal
Duration: 1 Sep 20145 Sep 2014

Conference

Conference22nd European Signal Processing Conference, EUSIPCO 2014
CountryPortugal
CityLisbon
Period1/09/145/09/14

Keywords

  • 802.11
  • Allan variance
  • coloured noise
  • noise characterisation
  • RSS

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