A parametric model for the distribution of the angle of arrival and the associated correlation function and power spectrum at the mobile station

Author

Abdi, Ali ; Barger, Janet A. ; Kaveh, Mostafa

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

51

Issue

3

fYear

2002

fDate

5/1/2002 12:00:00 AM

Firstpage

425

Lastpage

434

Abstract

One of the main assumptions in Clarke´s classic channel model is isotropic scattering, i.e., uniform distribution for the angle of arrival (AOA) of multipath components at the mobile station. However, in many mobile radio channels we encounter nonisotropic scattering, which strongly affects the correlation function and power spectrum of the complex envelope at the mobile receiver. We propose the use of the versatile von Mises (1918) angular distribution, which includes and/or closely approximates important distributions like uniform, impulse, cardioid, Gaussian, and wrapped Gaussian, for modeling the nonuniform AOAs at the mobile. Based on this distribution, the associated correlation function and. power spectrum of the complex envelope at the mobile receiver are derived. The utility of the new results is demonstrated by comparison with the correlation function estimates of measured data

Keywords

Gaussian distribution; correlation methods; direction-of-arrival estimation; electromagnetic wave scattering; land mobile radio; multipath channels; normal distribution; radio receivers; radiowave propagation; spectral analysis; AoA distribution; Gaussian distribution; angle of arrival distribution; angular distribution; cardioid distribution; channel model; complex envelope; correlation function; impulse distribution; isotropic scattering; measured data; mobile radio channels; mobile receiver; mobile station; multipath components; nonisotropic scattering; nonisotropic scattering propagation models; nonuniform AoA; parametric model; power spectrum; uniform distribution; wrapped Gaussian distribution; Atomic measurements; Cardiology; Closed-form solution; Error analysis; Fading; Land mobile radio; Multipath channels; Parametric statistics; Receivers; Scattering;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2002.1002493

Filename

1002493