English

Moment-based Parameter Estimation for ${\Gamma}$-parameterized TWDP Model

Signal Processing 2022-01-24 v1

Abstract

In this paper, parameterization of a two-wave with diffuse power (TWDP) fading model is revised. Anomalies caused by using conventional TWDP parameters KK and Δ\Delta are first identified, indicating that the existing moment-based estimators of a tuple (K,Δ)(K, \Delta) are not able to provide accurate estimations for various combinations of their values. Therefore, a moment-based estimators for a newly proposed parameters KK and Γ\Gamma 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,Δ)(K, \Delta) tuple, showing that moment-based estimators of the improved Γ\Gamma-based parameterization managed to overcome all anomalies observed within the conventional TWDP parameterization.

Cite

@article{arxiv.2106.09969,
  title  = {Moment-based Parameter Estimation for ${\Gamma}$-parameterized TWDP Model},
  author = {Pamela Njemcevic and Almir Maric and Enio Kaljic},
  journal= {arXiv preprint arXiv:2106.09969},
  year   = {2022}
}
R2 v1 2026-06-24T03:20:59.144Z