Title :
On the Performance Limits of Pilot-Based Estimation of Bandlimited Frequency-Selective Communication Channels
Author :
Montorsi, Francesco ; Vitetta, Giorgio Matteo
fDate :
11/1/2011 12:00:00 AM
Abstract :
In this paper the problem of assessing bounds on the accuracy of pilot-based estimation of a bandlimited frequency selective communication channel is tackled. Mean square error is taken as a figure of merit in channel estimation and a tapped-delay line model is adopted to represent a continuous time channel via a finite number of unknown parameters. This allows to derive some properties of optimal waveforms for channel sounding and closed form Cramer-Rao bounds.
Keywords :
bandlimited communication; channel estimation; mean square error methods; telecommunication channels; Cramer-Rao bound; bandlimited frequency selective communication channel; channel estimation; channel sounding; continuous time channel; mean square error; optimal waveform; pilot-based estimation; tapped-delay line model; Channel estimation; Covariance matrix; Estimation; Fading channels; Frequency estimation; Signal to noise ratio; Estimation; fading channels;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2011.070511.100269
