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

Héliot, F., Imran, M. A. and Tafazolli, R. (2012) A very tight approximation of the SISO energy efficiency-spectral efficiency trade-off. IEEE Communications Letters, 16(6), pp. 850-853. (doi:10.1109/LCOMM.2012.042512.120253)

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Beside the well-established spectral-efficiency (SE), energy-efficiency (EE) is currently becoming an important performance evaluation metric, which in turn makes the EE-SE trade-off as a prominent criterion for efficiently designing future communication systems. In this letter, we propose a very tight closed-form approximation (CFA) of this trade-off over the single-input single-output (SISO) Rayleigh flat fading channel. We first derive an improved approximation of the SISO ergodic capacity by means of a parametric function and then utilize it for obtaining our novel EE-SE trade-off CFA, which is also generalized for the symmetric multi-input multi-output channel. We compare our CFA with existing CFAs and show its improved accuracy in comparison with the latter.

Item Type:Articles
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
Journal Name:IEEE Communications Letters
ISSN (Online):1558-2558
Published Online:25 May 2012
Copyright Holders:Copyright © 2012 IEEE
First Published:First published in IEEE Communications Letters 16(6): 850-853
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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