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A small scale fading model with sectored and three dimensional diffuse scattering

  • Petros Karadimas
    ,
  • Efstathios D. Vagenas
    ,
  • Stavros A. Kotsopoulos
  • University of Patras
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
 Peer-review

Abstract

In frequency non-selective fading channels the multipath components can arrive at the mobile receiver via a three dimensional (3-D) scattering mechanism. That case occurs especially in urban environments, in which the tall buildings and other obstacles cause an arrival of multipath energy in the elevation plane, besides that arriving in the azimuth one. Another issue, which is a matter of investigation, is that the multipath energy may arrive at the mobile receiver in specific angular sectors. This is caused when a part of energy is blocked by the channel obstacles, or no multipath energy arrives from certain directions, due to lack of scattering objects in those directions, or directional antennas are employed. In this paper we propose a model which takes into account both 3-D multipath scattering and partial arrival of multipath energy. The proposed model assumes that the multipath components arrive at specific angular sectors in the azimuth receiver's plane, whereas in the elevation plane the angles of arrival are of continuous nature. Moreover a specular component with constant amplitude also exists. From the closed form autocorrelation function, the Doppler power spectral density (PSD) of the model is analytically derived Afterwards the probability density function (PDF) of the envelope and phase are analytically calculated. What follows are the second order statistics, level crossing rate (LCR) and average duration of fades (ADF's), in closed form.

Publication Information

Output type

Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
 Peer-review

Original language

English

Publication milestones

  • Published - 01/02/2008

Publication status

Published - 01/02/2008

Publisher

Institute of Electrical and Electronics Engineers Inc., United States

ISBN (Print)

9781424414567

ISBN (Electronic)

9781424414567

Publication IDs

  • handle.net: 10547/281380
  • Scopus: 51949089776

Host publication title

nan

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