Energy Efficiency of Transmit Diversity Systems Under a Realistic Power Consumption Model

Author

Kakitani, Marcos T. ; Brante, Glauber ; Souza, Richard Demo ; Imran, Muhammad Ali

Author_Institution

CCSR, Univ. of Surrey, Guildford, UK

Volume

17

Issue

1

fYear

2013

fDate

Jan-13

Firstpage

119

Lastpage

122

Abstract

We compare the downlink energy efficiency of spatial diversity multiple transmit antenna schemes. We determine the minimum required transmit power for a given outage probability. Our analysis shows that antenna selection is in general the most energy efficient option as it requires a single radio-frequency chain. We also investigate the limiting distances up to which the antenna selection technique outperforms the transmit beamforming scheme for different numbers of transmit antennas.

Keywords

array signal processing; diversity reception; power consumption; transmitting antennas; antenna selection; downlink energy efficiency; minimum required transmit power; outage probability; realistic power consumption; single radio-frequency chain; spatial diversity multiple transmit antenna; transmit beamforming scheme; transmit diversity systems; Energy consumption; Limiting; MIMO; Power demand; Radio frequency; Transmitting antennas; Energy efficiency; transmit diversity;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.112812.122253

Filename

6365881