TY - JOUR
T1 - Effect of radio bandwidth on multipath clustering
AU - Chang, Wei Ju
AU - Tarng, Jenn-Hwan
PY - 2003/4/22
Y1 - 2003/4/22
N2 - Detail knowledge of time dispersion characteristics of radio multipath propagation channel is essential for successful design of Ultra-Wideband (UWB) systems. The multipath-clustering phenomenon, which is caused by the fact that scatterers tend to group together, may become one of the dominant factors affecting the delay spread especially in the long delay situation. In this paper, a method based on Turin's Δ-K model is proposed to investigate and estimate the effect of radio bandwidth on the multipath clustering. It is found that the signal of larger bandwidth will observe stronger multipath clustering phenomenon because more paths can be resolved due to a finer time resolution. Our finding has been validated by the measurement result of 1.95 GHz radio propagation in metropolitan and suburban areas. It is also proposed that the Δ-K process of a wider-bandwidth signal can determine that of a narrower-bandwidth signal.
AB - Detail knowledge of time dispersion characteristics of radio multipath propagation channel is essential for successful design of Ultra-Wideband (UWB) systems. The multipath-clustering phenomenon, which is caused by the fact that scatterers tend to group together, may become one of the dominant factors affecting the delay spread especially in the long delay situation. In this paper, a method based on Turin's Δ-K model is proposed to investigate and estimate the effect of radio bandwidth on the multipath clustering. It is found that the signal of larger bandwidth will observe stronger multipath clustering phenomenon because more paths can be resolved due to a finer time resolution. Our finding has been validated by the measurement result of 1.95 GHz radio propagation in metropolitan and suburban areas. It is also proposed that the Δ-K process of a wider-bandwidth signal can determine that of a narrower-bandwidth signal.
UR - http://www.scopus.com/inward/record.url?scp=0041970964&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2003.1207790
DO - 10.1109/VETECS.2003.1207790
M3 - Conference article
AN - SCOPUS:0041970964
SN - 0740-0551
VL - 57
SP - 1066
EP - 1069
JO - IEEE Vehicular Technology Conference
JF - IEEE Vehicular Technology Conference
IS - 2
M1 - 1207790
T2 - 57th IEEE Semiannual Vehicular Technology Conference (VTC2003)
Y2 - 22 April 2003 through 25 April 2003
ER -