A framework for energy-consumption-based design space exploration for wireless sensor nodes

Sonali Chouhan, Ranjan Bose, M. Balakrishnan

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

In this paper, we first establish that, in wireless sensor networks, operating over small distances, both computation energy and radio energy influence the battery life. In such a scenario, to evaluate the utility of error-correcting codes (ECCs) from an energy perspective, one has to consider the energy consumed in encodingdecoding and transmitting additional redundant bits vis - vis the energy saved due to coding gain. This paper presents a framework for evaluating various ECCs based on a comprehensive energy model of a sensor node. The framework supports exploration of sensor node design space with application- and deployment-related parameters, like distance, bit error rate, path loss exponent, as well as the modulation scheme and ECC parameters. The exploration results show that, as compared to the uncoded-data transmission, the energy-optimal ECC saves 15%60% node energy for the given parameters.

Original languageEnglish
Article number5075821
Pages (from-to)1017-1024
Number of pages8
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Volume28
Issue number7
DOIs
StatePublished - Jul 2009
Externally publishedYes

Keywords

  • Communication systems
  • Design methodology
  • Energy management
  • Error correction coding
  • Modeling

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