Analysis of the LS estimation error on a Rayleigh fading channel
- 13 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 372-376 vol.1
- https://doi.org/10.1109/vetecs.2001.944867
Abstract
A channel in a wireless communication link is often treated as time invariant over an estimation interval, during which a least squares estimate of the channel is calculated, using training symbols. By a second order Taylor expansion of the channel, the estimation error due to time variation, can be approximated as a bias and an excess error which are due to the curvature and linear change of the channel, respectively. Approximate expressions for the variance of the estimation error in a Rayleigh fading channel, are presented here.Keywords
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