Title :
A study of the ultra-wideband wireless propagation channel and optimum UWB receiver design
Author_Institution :
UWB Wireless Corp., Parsippany, NJ, USA
fDate :
12/1/2002 12:00:00 AM
Abstract :
The paper addresses a crucial point in ultra-wideband (UWB) radio wave propagation, which is the spatial-temporal resolution of scattering objects into multiple frequency-dependent scattering centers. The effect contributes to the widely observed temporal dispersion of pulse-shaped transmit signals and their distortion, respectively. Particularly the latter is explained by (multiple) diffraction of the incident wave, leading to (multiple) band-limited impulse responses with characteristic frequency content, which in turn causes signal distortion and a degradation of the signal-to-noise ratio in a correlation receiver. We presented a new approach on UWB propagation modeling and optimum design of correlation receivers.
Keywords :
broadband networks; correlation methods; electromagnetic wave diffraction; electromagnetic wave scattering; multipath channels; noise; optimisation; radio networks; radio receivers; radiowave propagation; SNR; UWB propagation modeling; UWB radio wave propagation; band-limited impulse responses; correlation receiver; generalized matrix pencil method; multipath channels; multiple frequency-dependent scattering centers; multiple incident wave diffraction; optimum UWB receiver design; pulse-shaped transmit signals; scattering objects; signal distortion; signal-to-noise ratio; spatial-temporal resolution; temporal dispersion; ultra-wideband radio wave propagation; ultra-wideband wireless propagation channel; Degradation; Diffraction; Dispersion; Distortion; Frequency; Receivers; Scattering; Signal resolution; Spatial resolution; Ultra wideband technology;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/JSAC.2002.805249