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

Héliot, F., Imran, M. A. and Tafazolli, R. (2012) A Tight Closed-Form Approximation of the SISO Energy Efficiency-Spectral Efficiency Trade-Off. In: 2012 Future Network Mobile Summit (FutureNetw), Berlin, Germany, 04-06 Jul 2012, ISBN 9781905824304

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 2×2 multi-input multi-output (MIMO) system over the Rayleigh fading channel.

• Item Type: Conference Proceedings
• Additional Information: The research leading to these results has received funding from the European Commission’s Seventh Framework Programme FP7/2007-2013 under grant agreement n◦247733- project EARTH.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad
• Authors: Héliot, F., Imran, M. A., and Tafazolli, R.
• College/School: College of Science and Engineering > School of Engineering
• ISBN: 9781905824304
• Published Online: 05 September 2012