Energy-efficient analog sensing for large-scale, high-density persistent wireless monitoring

Vidyasagar Sadhu, Xueyuan Zhao, Dario Pompili

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

14 Scopus citations

Abstract

The research challenge of current Wireless Sensor Networks (WSNs) is to design energy-efficient, low-cost, high-accuracy, self-healing, and scalable systems for applications such as environmental monitoring. Traditional WSNs consist of low density, power-hungry digital motes that are expensive and cannot remain functional for long periods on a single charge. In order to address these challenges, a dumb-sensing and smart-processing architecture that splits sensing and computation capabilities among tiers is proposed. Tier-1 consists of dumb sensors that only sense and transmit, while the nodes in Tier-2 do all the smart processing on Tier-1 sensor data. A low-power and low-cost solution for Tier-1 sensors has been proposed using Analog Joint Source Channel Coding (AJSCC). An analog circuit that realizes the rectangular type of AJSCC has been proposed and realized on a Printed Circuit Board for feasibility analysis. A prototype consisting of three Tier-1 sensors (sensing temperature and humidity) communicating to a Tier-2 Cluster Head has been demonstrated to verify the proposed approach. Results show that our framework is indeed feasible to support large scale high density and persistent WSN deployment.

Original languageEnglish (US)
Title of host publication2017 13th Annual Conference on Wireless On-Demand Network Systems and Services, WONS 2017 - Proceedings
EditorsTommaso Melodia, Klaus Wehrle, Marios Lestas, Konstantinos Psounis
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages61-68
Number of pages8
ISBN (Electronic)9783901882883
DOIs
StatePublished - Mar 28 2017
Event13th Annual Conference on Wireless On-Demand Network Systems and Services, WONS 2017 - Jackson Hole, United States
Duration: Feb 21 2017Feb 24 2017

Publication series

Name2017 13th Annual Conference on Wireless On-Demand Network Systems and Services, WONS 2017 - Proceedings

Other

Other13th Annual Conference on Wireless On-Demand Network Systems and Services, WONS 2017
Country/TerritoryUnited States
CityJackson Hole
Period2/21/172/24/17

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Computer Networks and Communications

Keywords

  • Analog Joint Source Channel Coding
  • Measurement
  • Prototype
  • Sensor Networks
  • Shannon Mapping
  • Three-tier Architecture
  • Wireless Communications

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