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

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

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).

Citation

Karadimas, P., Vagenas, E. D., & Kotsopoulos, S. A. (2010). On the Scatterers' Mobility and Second Order Statistics of Narrowband Fixed Outdoor Wireless Channels. IEEE Transactions on Wireless Communications, 9(7), 2119-2124. https://doi.org/10.1109/twc.2010.07.080874

• 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