Channel Estimation Method Based on Precoding for Multi-relay Amplify-and-Forward Cooperative Communication System
Gan Lij · Video Engineering · 2015
A disintegrated channel estimation method based on precoding is proposed for multi-relay Amplify-and-Forward(AF)cooperative communication over flat-fading channel.This method estimates the Channel State Information(CSI) of the S-R links and R-D links by two stages.The precoding in the relay nodes for that they can transmit the training sequence to the destination node simultaneously.Simulation results show that the proposed method in this test can effectively estimate the channel state information of the two section link,with less the training time slot and less channel estimation time.