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A tight closed-form approximation of the SISO energy efficiency-spectral efficiency trade-off

  • Fabien Héliot
  • , Muhammad Ali Imran
  • , Rahim Tafazolli
  • University of Surrey

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Due to the rise of the energy efficiency (EE) as a system performance evaluation criterion, the EE-spectral efficiency (SE) trade-off is becoming a key tool for getting insight on how to efficiently design future communication system. As far as the single-input single-output (SISO) Rayleigh fading channel is concerned, the EE-SE trade-off has been accurately approximated in the past but only at low-SE. In this paper, we propose a novel and more generic closed-form approximation (CFA) of this EE-SE trade-off which is very accurate for any SE values. We compare our CFA with two existing CFAs and show the great accuracy of the former for a wider range of SE in comparison with the latter. As an application, we use our CFA to study the variation of EE-SE trade-off when a realistic power model is assumed and to compare the energy consumption of SISO against a 2x2 multi-input multi-output (MIMO) system over the Rayleigh fading channel.

Original languageEnglish
Title of host publication2012 Future Network and Mobile Summit, FutureNetw 2012
StatePublished - 2012
Externally publishedYes
Event2012 21st Future Network and Mobile Summit, FutureNetw 2012 - Berlin, Germany
Duration: 4 Jul 20126 Jul 2012

Publication series

Name2012 Future Network and Mobile Summit, FutureNetw 2012

Conference

Conference2012 21st Future Network and Mobile Summit, FutureNetw 2012
Country/TerritoryGermany
CityBerlin
Period4/07/126/07/12

Keywords

  • Energy efficiency
  • closed-form
  • single-input single-output system
  • spectral efficiency
  • trade-off

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