Energy-efficient sleep strategy for distributed MIMO systems

Author

Dongyan Huang ; Bo Wang ; Guixia Kang ; Hui Tian ; Congcong Li

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2014

Firstpage

1421

Lastpage

1425

Abstract

This paper focuses on the optimization of energy efficiency (EE) for BSs with distributed multiple-input multiple-output (MIMO) using an efficient antenna sleep strategy. A novel metric called sleep EE gain is proposed in this paper to evaluate the energy efficiency performance of sleep strategy in distributed MIMO systems. A related closed-form expression is developed to determine the optimum antenna sleep period and to optimize the proposed metric. Based on our analysis, we propose an efficient sleep strategy for distributed MIMO systems. Simulation results show that the proposed strategy can significantly improve the overall sleep energy efficiency gain of distributed MIMO systems.

Keywords

MIMO communication; antennas; energy conservation; BS; EE; closed-form expression; distributed MIMO systems; multiple-input multiple-output systems; optimum antenna sleep period; sleep energy efficiency gain; Antennas; Energy consumption; MIMO; Measurement; Quality of service; Radio frequency; Time factors; distributed MIMO; energy efficiency; sleep strategy;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor, and Mobile Radio Communication (PIMRC), 2014 IEEE 25th Annual International Symposium on

Type

conf

DOI

10.1109/PIMRC.2014.7136391

Filename

7136391