Title :
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
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;
Conference_Titel :
Personal, Indoor, and Mobile Radio Communication (PIMRC), 2014 IEEE 25th Annual International Symposium on
DOI :
10.1109/PIMRC.2014.7136391
