Title
Energy efficiency in reliable cooperative communications with retransmissions
Abstract
Although some works have been done for energy efficiency in cooperative communications, most of them don't consider reliable cooperative communications. However, reliable cooperative communications require re-transmissions, which will increase energy consumption. In this paper, instead of being interested in outage behavior and error analysis, we investigate the energy efficiency of reliable decode-and-forward cooperative communications in terms of a metric of bits per unit energy. Our analytical results reveal that the energy efficiency in reliable cooperative communications is concave with regard to the power level and the power ratio of the source to the relay, which determine the energy efficiency jointly. The processing energy at the receiver does not affect the concave relationship. These results may lead to the design of optimal power assignment and relay selection schemes.
Year
DOI
Venue
2012
10.1109/GreenCom.2012.6519617
OnlineGreenComm
Keywords
Field
DocType
reliable cooperative communications,outage behavior,power ratio,reliable decode-and-forward cooperative communications,cooperative communication,error analysis,telecommunication network reliability,decode-and-forward,telecommunication power management,optimal power assignment,energy efficiency,cooperative communications,energy consumption
Power ratio,Efficient energy use,Power level,Communications system,Electronic engineering,Engineering,Telecommunication network reliability,Energy consumption,Relay
Conference
Volume
Issue
ISSN
null
null
null
ISBN
Citations 
PageRank 
978-1-4799-0395-5
0
0.34
References 
Authors
14
4
Name
Order
Citations
PageRank
Quansheng Guan111.36
Shengming Jiang263162.04
Wanjuan Xie300.34
Fei Yu45116335.58