Prediction of Bandlimited Fading Envelopes with Arbitrary Spectral Shape
Date
2007
Authors
Lyman, R J
Sikora, Adam
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Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
In mobile radio, fading-envelope prediction can improve the performance of adaptive modulation techniques that require up-to-date channel-state information for optimal performance. We show how to compute the minimum mean squared prediction error of a mobile-radio fading envelope modeled as a stationary, bandlimited process arising from a diffuse set of local scatterers. For bandlimited processes, it is difficult to solve for the Wiener predictor using the usual spectral-factorization approach. Our method reduces the prediction problem to an eigenvalue decomposition, and is appropriate when the prediction is to be based on error-corrupted estimates of a narrowband fading process. We also show how to bound the error in the computation due to truncation of infinite series.
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Keywords
Keywords: Adaptive algorithms; Eigenvalues and eigenfunctions; Fading channels; Mean square error; Multipath propagation; Problem solving; Adaptive modulation; Bandlimited process; Bandlimited signals; Narrowband fading; Prediction methods; Fading (radio) Adaptive modulation; Bandlimited signals; Fading channels; Multipath channels; Prediction methods
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Source
IEEE Transactions on Wireless Communications
Type
Journal article
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Restricted until
2037-12-31
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