Compressed Sensing Signal and Data Acquisition in Wireless Sensor Networks and Internet of Things

Shancang Li

Research output: Contribution to journalArticle (Academic Journal)peer-review

351 Citations (Scopus)

Abstract

The emerging compressed sensing (CS) theory can significantly reduce the number of sampling points that directly corresponds to the volume of data collected, which means that part of the redundant data is never acquired. It makes it possible to create standalone and net-centric applications with fewer resources required in Internet of Things (IoT). CS-based signal and information acquisition/compression paradigm combines the nonlinear reconstruction algorithm and random sampling on a sparse basis that provides a promising approach to compress signal and data in information systems. This paper investigates how CS can provide new insights into data sampling and acquisition in wireless sensor networks and IoT. First, we briefly introduce the CS theory with respect to the sampling and transmission coordination during the network lifetime through providing a compressed sampling process with low computation costs. Then, a CS-based framework is proposed for IoT, in which the end nodes measure, transmit, and store the sampled data in the framework. Then, an efficient cluster-sparse reconstruction algorithm is proposed for in-network compression aiming at more accurate data reconstruction and lower energy efficiency. Performance is evaluated with respect to network size using datasets acquired by a real-life deployment.
Original languageEnglish
Pages (from-to)2177
Number of pages2186
JournalIEEE Transactions on Industrial Informatics
Volume9
Issue number4
Early online date1 Nov 2013
DOIs
Publication statusPublished - Nov 2013

Keywords

  • Compressed Sensing
  • Internet of Things

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