Energy-efficient Power Allocation for Point-to-point MIMO Systems over the Rayleigh Fading Channel
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Heliot, F, Imran, MA and Tafazolli, R (2012) Energy-efficient Power Allocation for Point-to-point MIMO Systems over the Rayleigh Fading Channel IEEE Wireless Communications Letters, 1 (4). 304 - 307. ISSN 2162-2337
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Official URL: http://dx.doi.org/10.1109/WCL.2012.042512.120147
Abstract
It is well-established that transmitting at full power is the most spectral-efficient power allocation strategy for pointto- point (P2P) multi-input multi-output (MIMO) systems, however, can this strategy be energy efficient as well? In this letter, we address the most energy-efficient power allocation policy for symmetric P2P MIMO systems by accurately approximating in closed-form their optimal transmit power when a realistic MIMO power consumption model is considered. In most cases, being energy efficient implies a reduction in transmit and overall consumed powers at the expense of a lower spectral efficiency.
| Item Type: | Article |
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| Additional Information: | © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| Divisions: | Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research |
| ID Code: | 726075 |
| Deposited By: | Symplectic Elements |
| Deposited On: | 10 Oct 2012 17:37 |
| Last Modified: | 16 Feb 2013 15:10 |
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