Title :
BER-optimized power allocation for amplify-and-forward in single relay system
Author_Institution :
Sch. of Inf. & Eng., Xiangtan Univ., Xiangtan, China
Abstract :
In single relay non-cooperative amplify-and-forward (AaF) system, taking into account both long-term path loss and short-term Rayleigh fading, a closed form expression to distribute total power optimally among source and relay is obtained, which minimize end-to-end BER. The simulation results under various channel conditions and scenarios show that it is consistent with theoretical analysis, and optimal power allocation is realized to minimize BER in a simple way.
Keywords :
Rayleigh channels; error statistics; relays; AaF system; BER-optimized power allocation; end-to-end BER; long-term path loss; short-term Rayleigh fading; single relay noncooperative amplify-and- forward system; total power; Base stations; Bit error rate; Broadcasting; Energy consumption; Measurement; Power distribution; Power engineering and energy; Power system relaying; Rayleigh channels; Relays; amplify-and-forward(AF); optimal power allocation; wireless relay;
Conference_Titel :
Network Infrastructure and Digital Content, 2009. IC-NIDC 2009. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4898-2
Electronic_ISBN :
978-1-4244-4900-6
DOI :
10.1109/ICNIDC.2009.5360854
