On the Energy Efficiency of MIMO Channels in Correlated Rayleigh Fading Environment

Jiang, Jing, Dianati, Mehrdad, Imran, Muhammad Ali and Tafazolli, Rahim (2013) On the Energy Efficiency of MIMO Channels in Correlated Rayleigh Fading Environment. In: European Wireless 2013: 19th European Wireless Conference, 16th - 18th April 2013, Guildford, UK.

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Abstract

This paper investigates the energy efficiency (EE) performance for multiple-input multiple-output (MIMO) systems in correlated Rayleigh fading environment. Taking into account a realistic power model, we derive a closed-form upper bound for the system EE as a function of SE, which shows a good accuracy for a wide range of SE values, in the presence of spatial fading correlation at both the transmitter and the receiver sides. The upper bound helps the system explicitly track the influence of SE on EE and the effects of spatial correlation. Results demonstrate that given a fixed number of transmit and receive antennas, there exists a certain region of SE that corresponds to better EE performance. Results also indicate that when the circuit power dominates EE, EE is more tolerant to the spatial fading correlation; in contrast, when the transmit power becomes more dominant, EE is more sensitive to the changes of correlation coefficient.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Paul Burns
Date Deposited:	13 Dec 2018 17:16
Last Modified:	11 Oct 2019 15:15
URI:	http://nrl.northumbria.ac.uk/id/eprint/37249

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