Optimal energy allocation and storage control for distributed estimation with sensor collaboration

Sijia Liu, Yanzhi Wang, Makan Fardad, Pramod Kumar Varshney

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

5 Scopus citations

Abstract

In wireless sensor networks with energy harvesting nodes, we study the problem of energy allocation and storage control for distributed estimation with sensor collaboration, where collaboration refers to the act of sharing measurements with neighboring sensors prior to transmission to a fusion center. To jointly design energy allocation and storage control polices, we formulate a nonconvex optimization problem in which the estimation distortion is minimized subject to energy harvesting and storage constraints. We show that the resulting optimization problem contains two special types of nonconvexities: cardinality function and difference of convex functions. By exploiting the problem structure, locally optimal solutions are found via an ℓ1 relaxation and a convex-concave procedure. Numerical experiments are provided to show the effectiveness of our approach.

Original languageEnglish (US)
Title of host publication2016 50th Annual Conference on Information Systems and Sciences, CISS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages42-47
Number of pages6
ISBN (Electronic)9781467394574
DOIs
StatePublished - Apr 26 2016
Event50th Annual Conference on Information Systems and Sciences, CISS 2016 - Princeton, United States
Duration: Mar 16 2016Mar 18 2016

Other

Other50th Annual Conference on Information Systems and Sciences, CISS 2016
CountryUnited States
CityPrinceton
Period3/16/163/18/16

Keywords

  • Convex optimization
  • Distributed estimation
  • Energy harvesting and storage
  • Sensor collaboration
  • Sparsity

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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  • Cite this

    Liu, S., Wang, Y., Fardad, M., & Varshney, P. K. (2016). Optimal energy allocation and storage control for distributed estimation with sensor collaboration. In 2016 50th Annual Conference on Information Systems and Sciences, CISS 2016 (pp. 42-47). [7460474] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CISS.2016.7460474