Title :
Power Allocation in training for two-way amplify-and-forward relay network
Author :
Chunyan Wu ; Yindi Jing
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
For a three-node amplify-and-forward (AF) two-way relay network (TWRN), we investigate the power allocation problem during the channel training process for both terminals to estimate the global channel state information (CSI) of the whole network. This includes the power allocations between different training steps and among different nodes. Two power allocation schemes are proposed: a mean-square-error (MSE) based scheme and an outage probability (OP) based scheme. Our simulation results demonstrate that the proposed power allocations are superior to even power allocation.
Keywords :
amplify and forward communication; mean square error methods; probability; relay networks (telecommunication); channel training process; global channel state information; mean-square-error based scheme; outage probability based scheme; power allocation problem; three-node amplify-and-forward two-way relay network; two-way amplify-and-forward relay network; Channel estimation; Estimation; Noise; Relays; Resource management; Training; Wireless communication; Two-way relay network; channel estimation; mean-square-error; outage probability; power allocation;
Conference_Titel :
Signal and Information Processing (ChinaSIP), 2013 IEEE China Summit & International Conference on
Conference_Location :
Beijing
DOI :
10.1109/ChinaSIP.2013.6625373
