FDTD modeling and characterization of the indoor radio propagation channel in the 434 MHz ISM band

In this paper the fundamental aspects of indoor radio propagation are presented and the possibility to characterize a dynamic channel by means of a static model based on the finite difference time domain method (FDTD) is examined. A 3D office environment is simulated in the 434 MHz ISM band for the characterization of channel operation according to the dominating distortions. The obtained results, which are in agreement with the theoretical values, verify that the channel operation is slow flat fading with No ISI making the application of the spatial diversity the most appropriate scheme.

[1]  Theodore S. Rappaport,et al.  Wireless communications - principles and practice , 1996 .

[2]  William C. Y. Lee,et al.  Mobile Communications Engineering , 1982 .

[3]  Bruna Tanaka Cremonini,et al.  Buildings , 1995, Data, Statistics, and Useful Numbers for Environmental Sustainability.

[4]  Melinda Piket-May,et al.  A modified FDTD (2, 4) scheme for modeling electrically large structures with high-phase accuracy , 1997 .

[5]  Magdy F. Iskander,et al.  A ray-tracing approach for indoor/outdoor propagation through window structures , 2002 .

[6]  Tapan K. Sarkar,et al.  Stochastic versus deterministic models in the analysis of communication systems , 2002 .

[7]  M. Keskilammi,et al.  Indoor propagation comparison between 2.45 GHz and 433 MHz transmissions , 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).

[8]  L.J.W. van Loon.  Mobile in-home UHF radio propagation for short-range devices , 1999 .

[9]  Jun Fujiwara,et al.  Proposal of design method for fixed wireless telecommunication in 400‐MHz band and measurements of propagation inside office buildings , 2000 .

[10]  P. Bello.  Characterization of Randomly Time-Variant Linear Channels , 1963 .

[11]  Chang-Fa Yang,et al.  A ray tracing method for modeling indoor wave propagation and penetration , 1996, IEEE Antennas and Propagation Society International Symposium. 1996 Digest.

[12]  A.K.Y. Lai,et al.  FDTD analysis of indoor radio propagation , 1998, IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36.