Title :
Modeling direct sequence pseudonoise (DSPN) signaling with directional antennas in the dense scatterer mobile environment
Author :
Amoroso, Frank ; Jones, William W.
Author_Institution :
Hughes Aircraft Co., Fullerton, CA, USA
Abstract :
A geometric propagation model is developed for simulation of the dense scatterer mobile radio communications environment. The model is validated by direct comparison of diffuse Doppler spectra with theoretical spectra for directional antennas and narrowband signals. The model is then used to predict fading statistics for direct-sequence pseudonoise (DSPN) signaling combined with directional antennas. As expected, the mitigation of fading is closely related to the ratio of DSPN chip duration to delay spread of the scatterer medium
Keywords :
directive antennas; fading; mobile radio systems; radiowave propagation; signalling (telecommunication networks); spread spectrum communication; DSPN chip duration; delay spread; dense scatterer mobile environment; diffuse Doppler spectra; direct sequence pseudonoise signalling; directional antennas; fading statistics; geometric propagation model; mobile radio communications; modelling; narrowband signals; radiowave propagation; simulation; spread spectrum modulation; Delay; Directional antennas; Fading; Land mobile radio; Mobile communication; Narrowband; Predictive models; Scattering; Solid modeling; Statistics;
Conference_Titel :
Vehicular Technology Conference, 1988, IEEE 38th
Conference_Location :
Philadelphia, PA
DOI :
10.1109/VETEC.1988.195395
