Title
Energy-efficient multi-user relay networks
Abstract
In this paper, multi-user relay networks are considered. We formulate a multi-user relay network model where all the relay nodes amplify and forward the signals from the source nodes to the destination nodes. Then we define the metric of energy efficiency and prove the quasi-concavity of the expression for energy efficiency. Moreover, a bisection method is raised to solve the problems. Three schemes including energy efficient(EE) scheme, spectrum efficient(SE) scheme and equal power allocation(EPA) scheme are compared, and the numeral results show that the EE scheme always achieve the highest energy efficiency, meanwhile, there has been a tradeoff between the energy efficiency and spectrum efficiency in practical designs.
Year
DOI
Venue
2011
10.1109/WCSP.2011.6096682
2011 International Conference on Wireless Communications and Signal Processing (WCSP)
Keywords
Field
DocType
Energy efficiency,relay networks,spectrum efficiency,tradeoff
Relay channel,Bisection method,Efficient energy use,Computer science,Computer network,Spectral efficiency,Relay network,Numeral system,Relay,Multi-user
Conference
Volume
Issue
ISSN
null
null
null
ISBN
Citations 
PageRank 
978-1-4577-1009-4
2
0.38
References 
Authors
8
4
Name
Order
Citations
PageRank
Huan Yu1452.30
Ruogui Xiao220.38
Yunzhou Li334536.62
Jing Wang410821.42