Title :
Two novel FDTD based UWB indoor propagation models
Author :
Zhao, Yan ; Hao, Yang ; Parini, Clive
Author_Institution :
Dept. of Electron. Eng., London Univ., UK
Abstract :
This paper presents two novel finite-difference time-domain (FDTD) based methods for UWB propagation modelling. For the dispersive FDTD model, Debye material is considered and the frequency dependent material information is discretely converted into time domain by using differential equation-based algorithm; for the sub-band FDTD model, the whole ultra wideband (3.1-10.6 GHz) is divided into 11 subbands with 700 MHz bandwidth and each sub-band is simulated separately using measured frequency-dependent material properties. Both the dispersive FDTD and the sub-band FDTD methods are verified by comparing reflection coefficients obtained from one-dimensional (1-D) simulation and analytical equations. The results from two-dimensional (2-D) dispersive FDTD, subband FDTD and UWB ray tracing simulations are obtained and discussed.
Keywords :
differential equations; finite difference time-domain analysis; indoor radio; ultra wideband communication; 3.1 to 10.6 GHz; 700 MHz; Debye material; FDTD; UWB indoor propagation models; differential equation-based algorithm; finite-difference time-domain; frequency dependent material information; ray tracing simulations; Bandwidth; Differential equations; Dispersion; Finite difference methods; Frequency conversion; Frequency dependence; Frequency measurement; Time domain analysis; Time measurement; Ultra wideband technology;
Conference_Titel :
Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-9397-X
DOI :
10.1109/ICU.2005.1569970
