Title :
Ultra-wideband (UWB) channel dispersion: classification and modeling
Author :
Joshi, Gaurav G. ; Davis, William A. ; Stutzman, Warren L.
Author_Institution :
Bradley Dept. of E.C.E., Virginia Tech, Blacksburg, VA
Abstract :
In this paper, UWB communication system dispersive phenomena has been investigated, which are divided into three types: frequency, resonant, and multipath dispersion. Existing wideband channel models are extended by incorporating dispersion mechanisms that have not been previously considered. This paper presents a novel dispersive channel model that incorporates the frequency-dependent scatterer response based upon the singularity expansion method (SEM) for scatter characterization. The scatterer response is determined using the least-square Prony´s method. Initial experimental results are also presented for a simple two-path channel
Keywords :
dispersive channels; least squares approximations; ultra wideband communication; wireless channels; UWB channel dispersion; UWB communication system; dispersive channels; frequency dispersion; frequency-dependent scatterer response; least-square Prony method; multipath dispersion; resonant dispersion; scatter characterization; simple two-path channel; singularity expansion method; ultra-wideband channel dispersion; Acoustic scattering; Delay; Dispersion; Rayleigh scattering; Receiving antennas; Resonance; Resonant frequency; Solid modeling; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551658
