Title :
Experimental multilevel NLOS characterization for UWB network localization
Author :
Guerra, Matteo ; Conti, Andrea
Author_Institution :
ENDIF, Univ. of Ferrara, Ferrara, Italy
Abstract :
Network localization is a new paradigm gaining interest in social, commercial, and military sectors. Ultrawide bandwidth (UWB) technology is promising for high-accuracy indoor localization due to the property of UWB signals. However, in non-line-of-sight (NLOS) conditions measurements are significantly biased, thus, high accuracy localization is challenging. We present a method for multilevel NLOS characterization, based on waveform measurements and their features, and we analyze its impact on localization error for both cooperative and non-cooperative localization algorithms. The results enable a system designer to understand the benefits of cooperation and NLOS characterization on the localization performance.
Keywords :
indoor communication; ultra wideband communication; UWB network localization; UWB signals; high accuracy localization; indoor localization; localization error; multilevel NLOS characterization; non-line-of-sight condition measurement; noncooperative localization algorithm; ultrawide bandwidth technology; waveform measurement; Accuracy; Bandwidth; Delay; Distance measurement; Feature extraction; Low earth orbit satellites; Niobium; NLOS detection; Network localization; experimentation; ranging; ultrawide bandwidth (UWB);
Conference_Titel :
Statistical Signal Processing Workshop (SSP), 2011 IEEE
Conference_Location :
Nice
Print_ISBN :
978-1-4577-0569-4
DOI :
10.1109/SSP.2011.5967650
