Energy efficiency of transmit diversity system in correlated channel

Author

Quan Zhou ; Ying Yang ; Li Chen ; Guo Wei

Author_Institution

Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China

fYear

2013

fDate

24-26 Oct. 2013

Firstpage

1

Lastpage

5

Abstract

MIMO energy efficiency has attracted a lot of attention recently. In this paper, energy efficiency of two different transmit diversity schemes (transmit antenna selection and transmit beamforming) is analyzed in correlated channel. We derive the relationship between spatial correlation and energy efficiency of two transmit diversity schemes and find that spatial correlation has different effects on them. In order to improve the energy efficiency of the system, we calculate the boundary spatial correlation coefficient based on which transmit diversity schemes can be adopted adaptively. Finally, a simulation is developed to prove our analysis.

Keywords

MIMO communication; array signal processing; correlation methods; diversity reception; telecommunication power management; MIMO energy efficiency; boundary spatial correlation coefficient; correlated channel; transmit antenna selection; transmit beamforming; transmit diversity system; Energy efficiency; spatial correlation; transmit diversity;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications & Signal Processing (WCSP), 2013 International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/WCSP.2013.6677248

Filename

6677248