Paper Info
Title
On the energy efficiency of virtual MIMO systems
Abstract
The major motivation behind this work is to optimize the sleep mode and transmit power level strategies in a small cell cluster in order to maximize the proposed energy efficiency metric. We study the virtual multiple input multiple output (MIMO) established with each base station in the cluster equipped with one transmit antenna and every user equipped with one receive antennas each. The downlink energy efficiency is analyzed taking into account the transmit power level as well as the implementation of sleep mode schemes. In our extensive simulations, we analyze and evaluate the performance of the virtual MIMO through zero-forcing schemes and the benefits of sleep mode schemes in small cell clusters. Our results show that for certain configurations of the system, implementing a virtual MIMO with several transmit antennas can be less energy efficient than a system with sleep mode using OFDMA with a single transmitting antenna for serving multiple users.
Year
DOI
Venue
2013
10.1109/PIMRCW.2013.6707827
Personal, Indoor and Mobile Radio Communications
Keywords
Field
DocType
MIMO communication,OFDM modulation,energy conservation,frequency division multiple access,radio links,receiving antennas,telecommunication power management,transmitting antennas,OFDMA,base station,downlink energy efficiency metric,power level strategy,receiving antenna,sleep mode,sleep mode scheme,small cell cluster,transmitting antenna,virtual MIMO system,virtual multiple input multiple output,zero-forcing scheme
MIMO-OFDM,3G MIMO,Multi-user MIMO,Transmitter power output,Efficient energy use,Computer science,MIMO,Real-time computing,Sleep mode,Spatial multiplexing
Conference
Citations 
PageRank 
References 
2
0.37
3
Authors
4
Name
Order
Citations
PageRank
Vineeth S. Varma13014.31
Salah-Eddine Elayoubi248942.41
Merouane Debbah365034.40
Samson Lasaulce486874.24