Training placement for tracking fading channels

Min Dong, Lang Tong, Sadler
2002 IEEE International Conference on Acoustics Speech and Signal Processing  
The problem of training symbol placement in data packets for channel tracking is considered, where the channel is time-varying Rayleigh flat fading. We use the minimum mean-square error (MMSE) estimator for channel tracking. A minmax approach is considered. We optimize the placement by minimizing the maximum MSE over a packet. It is shown that training symbols should be scattered throughout the packet with equal space to achieve the optimal performance.
doi:10.1109/icassp.2002.1005115 fatcat:edvdltjrr5cidpvwd4v7nat55u