DocumentCode :
2452997
Title :
A half-duplex relay coding scheme optimized for energy efficiency
Author :
Parzysz, Fanny ; Vu, Mai H. ; Gagnon, François
Author_Institution :
Ecole de Technol. Super., Montreal, QC, Canada
fYear :
2011
fDate :
16-20 Oct. 2011
Firstpage :
306
Lastpage :
310
Abstract :
We explore the issue of the network energy efficiency in relay channels. We first propose a half-duplex decode-forward coding scheme. We then optimize the power allocation to minimize the total power consumption while maintaining a desired source rate. We show that this scheme significantly outperforms direct and two-hop transmissions. Moreover, it reduces the relay energy consumption by up to 7dB, which is beneficial for shared relay stations, and smooths out transmit power peaks, which simplifies interference management.
Keywords :
decode and forward communication; minimisation; network coding; radiofrequency interference; wireless channels; energy efficiency; half-duplex decode-forward coding scheme; half-duplex relay coding scheme; interference management; power allocation; power consumption; relay channels; relay energy consumption; relay stations; two-hop transmissions; AWGN; Encoding; Power demand; Relays; Resource management; Routing; Achievable rate; Coding scheme; Energy efficiency; Half-duplex; Relay channel;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory Workshop (ITW), 2011 IEEE
Conference_Location :
Paraty
Print_ISBN :
978-1-4577-0438-3
Type :
conf
DOI :
10.1109/ITW.2011.6089442
Filename :
6089442
Link To Document :
بازگشت