Energy consumption analysis of energy harvesting systems with power grid

Yuyi Mao, Guanding Yu, Caijun Zhong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


Energy Harvesting (EH) is an indispensable technology for future wireless communication systems due to its potential in saving nonrenewable energy and making the communication environmentally friendly. However, due to the unpredictable and intermittent nature of the external energy arrivals, communication systems solely powered by harvested energy can not guarantee the delivery of reliable and uninterrupted services. Consequently, having stable power supply from power grid is still of great importance in EH communication systems. In this letter, we consider a wireless communication system powered by both power grid energy and harvested energy. Specifically, we propose two strategies depending on how the harvested energy is used, and investigate the average energy consumed from the power grid in each case. The major contribution of this letter is the derivation of recursive expressions for the grid energy consumption in hybrid-energy supply communication systems, which may provide an useful tool for transmission scheme designs.

Original languageEnglish
Article number6587054
Pages (from-to)611-614
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number6
Publication statusPublished - Dec 2013
Externally publishedYes


  • Energy harvesting
  • hybrid-energy supply system
  • power grid energy consumption

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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