Title :
Characterization of delay spread for mobile radio communications under collapsed buildings
Author :
Chen, Ling ; Loschonsky, Marc ; Reindl, Leonhard M.
Author_Institution :
Dept. of Microsyst. Eng. - IMTEK, Univ. of Freiburg, Freiburg, Germany
Abstract :
Numerous investigations of mobile radio communication have been conducted in environments such as urban, outdoor-to-indoor or indoor, only a few are in ruins. Within a running project, I-LOV, a study of a mobile radio propagation channel in urban search and rescue scenarios is conducted. Due to complex environment in ruins, great multipath interference can take place, which strongly impacts communication quality and localization accuracy. This paper focuses on the characterization of time dispersion in such scenarios at GSM 900, GSM 1800 and UMTS frequency bands. High resolution measurements have been performed under collapsed buildings and post-processing data analysis were executed. The mean delay and RMS delay spread has been investigated according to power delay profiles. The effect of frequency window function on impulse responses and delay spread is also researched.
Keywords :
cellular radio; radiofrequency interference; radiowave propagation; transient response; GSM; RMS delay spread; UMTS frequency bands; collapsed buildings; frequency window function; high resolution measurements; impulse responses; mean delay; mobile radio communications; mobile radio propagation channel; multipath interference; post-processing data analysis; power delay profiles; time dispersion characterization; 3G mobile communication; Antenna measurements; Buildings; Delay; Frequency measurement; Frequency response; GSM; collapsed buildings; delay spread; maximum likelihood; mobile radio channels; parameter estimation;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-8017-3
DOI :
10.1109/PIMRC.2010.5671853
