Title :
Direct calculation of coherence bandwidth in urban microcells using a ray-tracing propagation model
Author :
Anderson, H.R. ; McGeehan, J.P.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
An important parameter in characterizing radio communications channels is the coherence bandwidth. This paper presents an analysis of the coherence bandwidth in a urban microcell environment where the dynamic channel response is determined by a site-specific ray-tracing propagation model. Such an analytical model provides a direct calculation of signal fading envelope correlation as a function of frequency and location. The analysis here shows that coherence bandwidth is strongly dependent on location within a particular propagation environment and only weakly related to RMS delay spread. Typical results for frequency diversity gain for various frequency separations are also presented
Keywords :
cellular radio; RMS delay spread; analytical model; coherence bandwidth; dynamic channel response; frequency diversity gain; frequency separations; radio communications channels; ray-tracing propagation model; signal fading envelope correlation; urban microcells; Bandwidth; Coherence; Delay; Fading; Frequency diversity; Microcell networks; Ray tracing; Receivers; Reflection; Robustness;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.530759
