Prediction of Fading Broadband Wireless Channels. JOINT BEATS/Wireless IP seminar, Loen. Torbjörn Ekman UniK-University Graduate Center Oslo, Norway. Contents. Motivation Noise Reduction Linear Prediction of Channels Delay Spacing, Sub-sampling Results Power Prediction Results
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JOINT BEATS/Wireless IP seminar, Loen
UniK-University Graduate Center
With channels known in advance the problem with fast fading can be turned into an advantage
The multi-user diversity can be exploited
The estimated Doppler spectrum is low pass and has a noise floor.
The same noise floor is seen in the power delay profile.
The MSE optimal delay spacing for the Jakes model depends on the variance of the estimation error.
The NMSE has many local minima.
Prediction performance on the variance of the estimation error.a Jakes model
Power Prediction the variance of the estimation error.
Observed power or complex regressors? the variance of the estimation error.