Title :
A novel TOA estimation method of broadband signal propagation in outdoor environment
Author :
Chang, Wei-Ju ; Tarng, J.H.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao-Tung Univ., Hsin-Chu, Taiwan
Abstract :
In high-speed wireless data transmission, severe frequency-selective fading of a multipath channel causes inter-symbol interference (ISI) and leads to a significant problem in the system. To ease the problem, precise modeling of the multipath time-of-arrival (TOA) is important and needed. In this paper, a novel method, based on Turin´s Δ-K model, is proposed to estimate the TOA of a broadband signal through the measured result of a narrow band signal in outdoor environments. Our method has been validated by the measurement result of 1.95 GHz and 2.44 GHz radio propagation in metropolitan and suburban areas. The TOA of a 120 MHz bandwidth signal can be effectively predicted by using our method with the measured results of a 15 MHz bandwidth signal.
Keywords :
UHF radio propagation; fading channels; intersymbol interference; multipath channels; time-of-arrival estimation; 1.95 GHz; 120 MHz; 15 MHz; 2.44 GHz; ISI; TOA estimation method; Turin Δ-K model; broadband signal propagation; frequency-selective fading; high-speed wireless data transmission; inter-symbol interference; metropolitan radio propagation; multipath channels; narrow band signal measurement; outdoor radio environment; suburban radio propagation; time-of-arrival estimation; Area measurement; Bandwidth; Data communication; Fading; Frequency; Intersymbol interference; Multipath channels; Narrowband; Radio propagation; Time of arrival estimation;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1387958
