Tiled time delay estimation in mobile cloud computing environments

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

Abstract

We present a tiled delay estimation technique in the context of Mobile Cloud Computing (MCC) environments. We examine its accuracy in the presence of multiple sources for (1) sub-sample delays and also (2) in the presence of phase-wrap around. Phase wrap-around is prevalent in MCC because the separation of acoustic sources may be large. We show that tiling a histogram of instantaneous phase estimates can improve delay estimates when phase-wrap around is significantly present and also when multiple sources are present. We report that error in the delay estimator is generally less than 5% of a sample, when the true delay is up to 10 samples for three source mixtures.

Original languageEnglish
Title of host publication2017 IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages282-287
Number of pages6
ISBN (Electronic)9781538646625
DOIs
Publication statusPublished - 18 Jun 2018
Event17th IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2017 - Bilbao, Spain
Duration: 18 Dec 201720 Dec 2017

Publication series

Name2017 IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2017

Conference

Conference17th IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2017
Country/TerritorySpain
CityBilbao
Period18/12/1720/12/17

Keywords

  • Interference
  • Mobile communication
  • Noise cancellation
  • Transforms
  • Time-frequency analysis
  • Mobile handsets
  • Urban areas

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