Energy-efficient Power Allocation for Point-to-point MIMO Systems over the Rayleigh Fading Channel
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
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.
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|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research|
|Deposited By:||Symplectic Elements|
|Deposited On:||10 Oct 2012 17:37|
|Last Modified:||16 Feb 2013 15:10|
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