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Moment-method estimation of the Ricean K-factor

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3 Author(s)
Greenstein, L.J. ; Wireless Commun. Res. Dept., AT&T Lab.-Res., Red Bank, NJ, USA ; Michelson, D.G. ; Erceg, V.

In many radio propagation environments, the time-varying envelope of the received signal can be statistically described by a Ricean distribution. Traditional methods for estimating the Ricean K-factor from measured power versus time are relatively cumbersome and time consuming. We describe a simple and rapid approach wherein the K-factor is an exact function of moments estimated from time-series data. Comparisons with empirical distributions for fixed wireless paths validate the method.

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Communications Letters, IEEE  (Volume:3 ,  Issue: 6 )