Title :
Ultra wideband propagation channel on two path model with laptop computers
Author :
Manositthichai, Narongsak ; Promwong, Sathaporn
Author_Institution :
Dept. of Inf. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
This paper presents the ultra wideband propagation (UWB) channel on two path model with laptop computers. The UWB pulse with specific center frequency and bandwidth is used for transmitted signal. Complex form Friis´ transmission formula is applied for the UWB propagation channel. The received signal is evaluated. The UWB path loss is defined as the ratio between the maximum amplitude of the transmitted and received signal waveforms. For the data processing, the path loss of two path model is considered for the 0.10 and 0.20 m antenna heights. The double linear regression for the path loss is modeled by using the minimum mean square error (MMSE) and first Fresnel zone break-point curve fits. The characteristics of the path loss function of the antenna heights are evaluated and discussed in this paper.
Keywords :
curve fitting; laptop computers; least mean squares methods; personal area networks; radiowave propagation; receiving antennas; regression analysis; transmitting antennas; ultra wideband communication; wireless channels; Fresnel zone break-point curve fit; data processing; double linear regression; laptop computer; minimum mean square error; personal area network; receiver antenna; size 0.10 m; size 0.20 m; transmitting antenna; two path model; ultra wideband propagation channel; Antennas and propagation; Bandwidth; Data processing; Frequency; Fresnel reflection; Linear regression; Mean square error methods; Portable computers; Propagation losses; Ultra wideband technology;
Conference_Titel :
Intelligent Signal Processing and Communications Systems, 2008. ISPACS 2008. International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-2564-8
Electronic_ISBN :
978-1-4244-2565-5
DOI :
10.1109/ISPACS.2009.4806704
