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Conference Papers Year : 2013

Energy Evaluation of Spatial Modulation at a Multi-Antenna Base Station

Abstract

In this paper, we aim to study the Energy Efficiency (EE) of Spatial Modulation (SM) at different Base Stations (BSs) taking into account the total power consumption. Compared to conventional Multiple-Input Multiple-Output (MIMO) schemes, SM benefits from a single Radio Frequency (RF) chain which results in decreased power supply (W), higher EE (Mbits/J), and reduced complexity. Using the fundamental limits of Shannon capacity, we show that SM achieves a range of average data rates with only a fraction, which can be as low as 24% for four transmit antennas, of the total power supply of conventional MIMO. In addition, we demonstrate that the EE of the studied schemes is maximized for a certain average data rate and that SM achieves the highest EE among them. Finally, we note that a BS employing SM can be up to 67% more energy efficient compared to a BS under a conventional MIMO transmission scheme, for four transmit antennas.
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Dates and versions

hal-00829288 , version 1 (03-06-2013)

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Athanasios Stavridis, Sinan Sinanovic, Marco Di Renzo, Harald Haas. Energy Evaluation of Spatial Modulation at a Multi-Antenna Base Station. 2013 IEEE 78th Vehicular Technology Conference (VTC Fall), Sep 2013, Las Vegas, United States. pp.1-5, ⟨10.1109/vtcfall.2013.6692187⟩. ⟨hal-00829288⟩
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