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International Journal of Antennas and Propagation
Volume 2015, Article ID 173936, 7 pages
http://dx.doi.org/10.1155/2015/173936
Research Article

Statistical Analysis of Radio Propagation Channel in Ruins Environment

Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

Received 10 January 2015; Revised 17 March 2015; Accepted 17 March 2015

Academic Editor: Christoph F. Mecklenbräuker

Copyright © 2015 Jiao He et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The cellphone based localization system for search and rescue in complex high density ruins has attracted a great interest in recent years, where the radio channel characteristics are critical for design and development of such a system. This paper presents a spatial smoothing estimation via rotational invariance technique (SS-ESPRIT) for radio channel characterization of high density ruins. The radio propagations at three typical mobile communication bands (0.9, 1.8, and 2 GHz) are investigated in two different scenarios. Channel parameters, such as arrival time, delays, and complex amplitudes, are statistically analyzed. Furthermore, a channel simulator is built based on these statistics. By comparison analysis of average excess delay and delay spread, the validation results show a good agreement between the measurements and channel modeling results.