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A Tight Closed-Form Approximation of the SISO Energy Efficiency-Spectral Efficiency Trade-Off

Héliot, F, Imran, MA and Tafazolli, R (2012) A Tight Closed-Form Approximation of the SISO Energy Efficiency-Spectral Efficiency Trade-Off In: ICT Future & Mobile Summit, 2012-07-04 - 2012-07-06, Berlin, Germany.

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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.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
AuthorsEmailORCID
Héliot, FUNSPECIFIEDUNSPECIFIED
Imran, MAUNSPECIFIEDUNSPECIFIED
Tafazolli, RUNSPECIFIEDUNSPECIFIED
Date : 1 July 2012
Additional Information : Copyright The Authors 2012
Depositing User : Symplectic Elements
Date Deposited : 14 Dec 2012 12:39
Last Modified : 23 Sep 2013 19:41
URI: http://epubs.surrey.ac.uk/id/eprint/726078

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