Title :
On the energy efficiency of feedback-assisted network coding in multiuser cooperative systems
Author :
Rayel, Ohara Kerusauskas ; Rebelatto, Joao Luiz ; Demo Souza, Richard ; Uchoa-Filho, Bartolomeu F. ; Yonghui Li
Author_Institution :
Fed. Univ. of Technol. - Parana, Curitiba, Brazil
Abstract :
In this paper, we consider the energy efficiency as a metric to evaluate the performance of the network coding technique when applied to a feedback-assisted multiple access cooperative network, where multiple nodes have independent information to transmit to a common destination. The energy consumption of the transmission and reception circuits is taken into account, and it is shown that only one bit of feedback may reduce the network consumption when compared schemes without feedback. The optimal number of nodes that minimizes the energy consumption of the network as a function of the distance is obtained analytically, and confirmed by numerical results.
Keywords :
cooperative systems; energy conservation; multiuser detection; network coding; energy efficiency; feedback-assisted multiple access cooperative network; feedback-assisted network coding; network coding technique; optimal number; reception circuits; transmission circuits; Cooperative systems; Educational institutions; Energy consumption; Network coding; Receivers; Transmitters; Wireless networks; Cooperative communication; energy efficiency; multiple access; network coding;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4673-2566-0
Electronic_ISBN :
2166-9570
DOI :
10.1109/PIMRC.2012.6682729