Moment-based Parameter Estimation for Γ-parameterized TWDP Model

Abstract

In this paper, parameterization of a two-wave with diffuse power (TWDP) fading model is revised. Anomalies caused by using conventional TWDP parameters K and are first identified, indicating that the existing moment-based estimators of a tuple (K, ) are not able to provide accurate estimations for various combinations of their values. Therefore, a moment-based estimators for a newly proposed parameters K and are derived and analyzed through asymptotic variance (AsV) and Cramer-Rao bound (CRB) metrics. The results are qualitatively compared to those obtained for a (K, ) tuple, showing that moment-based estimators of the improved -based parameterization managed to overcome all anomalies observed within the conventional TWDP parameterization.

Tasks

Reproductions