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Finite-State Markov Modeling of Flat Fading Channels

Cecilio Pimentel, Tiago Falk, Luciano Lisbôa

Resumo

"The stochastic properties of the binary channel that describe the successes and the failures of the transmission of a modulated signal over a time correlated flat fading channel is considered for investigation. This analysis is employed to develop K-th order Markov models for such a burst channel. The order of the Markov model that generates accurate analytical models is estimated for a broad range of fading environments. The parameterization and the accuracy of an important class of hidden Markov models known as the Gilbert-Elliott channel are also investigated. Fading rates are identified in which the K’-th order and the Gilbert-Elliott channel model approximate the fading channel with similar accuracy. The latter model is useful for approximating slowly fading processes, since it provides a far more compact parameterization."