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

Ali Abdi, Janet A. Barger, Mostafa Kaveh

Research output: Contribution to journalArticlepeer-review

376 Scopus citations

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. In this contribution, we propose the use of the versatile von Mises 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.

Original languageEnglish (US)
Pages (from-to)425-434
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume51
Issue number3
DOIs
StatePublished - May 2002

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

Keywords

  • Angle-of-arrrival correlation
  • Fading channels
  • Multipath channels
  • Nonisotropic scattering
  • Spectrum

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