Modeling of an Indoor Propagation Channel for Digital TV Signal Using FDTD

Taehong KIM
Hyeonjin LEE

IEICE TRANSACTIONS on Communications   Vol.E86-B    No.6    pp.2068-2072
Publication Date: 2003/06/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antenna and Propagation
indoor propagation,  FDTD,  rms,  delay spread,  

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Though analysis of an indoor propagation channel has been conventionally used the ray-tracing method, in this paper using three dimension of finite difference time domain methods can easily and exactly be obtained three-dimensional complex structures. An excitation signal of FDTD made use of plane wave. An absorbing boundary condition used the most reflection less perfectly matched layer in the outset plane. An empty room surrounded a wall composed of brick, concrete and case that there are indoor furniture in the room were simulated. As simulation outcome, we could identify frequently rising reflection, refraction, scattering of objects and a fading effect of multipath at indoor propagation environment, calculate mean excess delay and rms delay spread for receiver design.