Title :
Spatial Characteristics of UWB TOA-based Ranging in Indoor Multipath Environments
Author :
Alsindi, Nayef ; Alavi, Bardia ; Pahlavan, Kaveh
Author_Institution :
Worcester Polytech. Inst., Worcester
Abstract :
This paper provides the results of comprehensive measurement and modelling of time of arrival (TOA) based UWB ranging in different indoor environments and ranging scenarios. We show that ranging accuracy of UWB systems is directly related to the physical constraints of the environment and system bandwidth. In addition we show through empirical measurement and modelling that the spatial characteristics of the ranging error depend on the presence and absence of the Direct Path (DP). In the former, the spatial error follow a normal distribution, while in the latter, the error behaviour is best modelled as lognormal.
Keywords :
indoor radio; multipath channels; time-of-arrival estimation; ultra wideband communication; UWB systems; direct path; indoor multipath environments; normal distribution; time of arrival based UWB; Bandwidth; Delay estimation; Indoor environments; Intelligent networks; Land mobile radio; Mobile communication; Propagation delay; Signal resolution; Time measurement; Wireless sensor networks;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394445
