Full-wave analysis of indoor communication problems, based on a parabolic equation: finite element technique

  • Authors:

  • G. K. Theofilogiannakos;T. V. Yioultsis;T. D. Xenos

  • Affiliations:

  • Dept. of Electrical and Computer Enginnering, Aristotle University of Thessaloniki, Thessaloniki, Greece;Dept. of Electrical and Computer Enginnering, Aristotle University of Thessaloniki, Thessaloniki, Greece;Dept. of Electrical and Computer Enginnering, Aristotle University of Thessaloniki, Thessaloniki, Greece

  • Venue:
  • ICCOM'05 Proceedings of the 9th WSEAS International Conference on Communications
  • Year:
  • 2005

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Abstract

This paper presents a new methodology to compute the electromagnetic field in practical cases of indoor communications. In particular, we consider the highly interesting case of the so-called interface modeling, i.e. when a plane wave propagates to the interior of a building. The proposed technique is based on a parabolic wave equation in three dimensions, while the cross section of the computational domain, as the wave propagates, is modeled by means of a finite element technique, terminated by highly absorbing PML boundaries. This formulation enables a robust computational modeling of obstacles of complex shape in a fully automated way. Unlike standard ray-tracing techniques, the proposed scheme makes it possible to solve a series of complex geometries and structures that would require vast computational resources with existing approaches.