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On the Scatterers' Mobility and Second Order Statistics of Narrowband Fixed Outdoor Wireless Channels

Karadimas, Petros; Vagenas, Efstathios D.; Kotsopoulos, Stavros A.

Authors

Efstathios D. Vagenas

Stavros A. Kotsopoulos



Abstract

In this paper, we study the temporal behavior of narrowband fixed outdoor wireless channels by modeling the impact of scatterers' mobility on the second order statistics of such channels. We show that the Nakagami-m, gamma, Weibull and lognormal probability density functions (PDFs) can adequately approximate the scatterers' mobility at outdoor environments by comparing the theoretically derived autocorrelation functions (ACFs) with measured ACFs. These theoretical ACFs arise after considering several candidate PDFs for the impact of scatterers mobility. We select that PDF whose ACF provides the best fitting to measurements. The modeling of scatterers' mobility lead us to present analytical expressions for the level crossing rate (LCR) and average fade duration (AFD) together with an exact expression for the power spectral density (PSD).

Journal Article Type Article
Online Publication Date Jul 15, 2010
Publication Date 2010-07
Deposit Date Jan 15, 2022
Journal IEEE Transactions on Wireless Communications
Print ISSN 1536-1276
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 9
Issue 7
Pages 2119-2124
DOI https://doi.org/10.1109/twc.2010.07.080874
Keywords Fixed wireless channels, Rician channels, scatterers' mobility, second order statistics
Public URL http://researchrepository.napier.ac.uk/Output/2835024