Sustainability-driven power control for energy harvesting enhanced wireless transmission

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6 Scopus citations

Abstract

Battery-powered wireless nodes' lifetime can be significantly extended by integrating energy-harvesting function. As energy-harvesting is a highly varying process, the guarantee of batteries' sustainability becomes extremely crucial for nodes that record and deliver multimedia content. We in this paper propose a sustainability-driven power control scheme for wireless transmission with energy-harvesting function. In particular, we first present a statistical sustainability guarantee framework, where the probability of battery-low status needs to be lower than a specified threshold. Then, by developing a novel inversely-queuing technique, we can readily apply the effective bandwidth/capacity theory to explicitly identify the battery-low probability as a function of the energy harvesting and consuming processes. Following these results, we formulate the throughput maximization problem subject to the statistical sustainability constraint. We then solve for the optimal sustainability-driven power control scheme and discuss its associated characteristics. A set of simulation results are also presented to show the superiority of our proposed scheme as compared to the baseline schemes such as the constant-power variable-rate scheme and constant-rate variable-power scheme.

Original languageEnglish
Title of host publicationProceedings - 2014 IEEE International Conference on Computer and Information Technology, CIT 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages812-817
Number of pages6
ISBN (Electronic)9781479962389
DOIs
StatePublished - 12 Dec 2014
Event14th IEEE International Conference on Computer and Information Technology, CIT 2014 - Xi'an, Shaanxi, China
Duration: 11 Sep 201413 Sep 2014

Publication series

NameProceedings - 2014 IEEE International Conference on Computer and Information Technology, CIT 2014

Conference

Conference14th IEEE International Conference on Computer and Information Technology, CIT 2014
Country/TerritoryChina
CityXi'an, Shaanxi
Period11/09/1413/09/14

Keywords

  • Energy harvesting
  • Power control
  • Resource allocation
  • Sustainability

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