Summary
International Symposium on Antennas and Propagation
2008
Session Number:3A05
Session:
Number:3A05-1
Channel Prediction Based on Chirp Z-Transform and Linear Parameter Prediction
Sofyan Tan, Akira Hirose,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
Fast fading channel prediction using chirp z-transform (CZT) and linear parameter prediction is proposed. The fading channel is modeled as a deterministic process, which can be approximated as the summation of some sinusoids. To mitigate quickly changing fading channel characteristic caused by relative movement between transmitter, receiver, and reflectors, a novel channel prediction method is proposed. The proposed method estimate dominant path parameters from the Doppler spectrum, calculated using chirp z-transform, and predict the future path parameters using linear prediction. Future channel characteristic can then be extrapolated from the predicted parameters. Evaluation shows that this method can increase accuracy of channel prediction.