TY - JOUR
T1 - Localization via ultra-wideband radios
T2 - A look at positioning aspects of future sensor networks
AU - Gezici, Sinan
AU - Tian, Zhi
AU - Giannakis, Georgios B.
AU - Kobayashi, Hisashi
AU - Molisch, Andreas F.
AU - Poor, H. Vincent
AU - Sahinoglu, Zafer
PY - 2005/7
Y1 - 2005/7
N2 - Ultra-wideband (UWB) technology provides an excellent means for wireless positioning due to its high resolution capability in the time domain. Its usability to resolve multipath components makes it possible to obtain accurate location estimates without the need for complex estimation algorithms. This precise location estimation capability facilitates many applications such as medical monitoring, security, and asset tracking. This paper discusses the theoretical limits of TOA estimation and TOA-based location estimation for UWB systems. Due to the complexity of the optimal schemes, suboptimal but practical alternatives are emphasized. Performance limits for hybrid TOA/SS and TDOA/SS schemes are also considered.
AB - Ultra-wideband (UWB) technology provides an excellent means for wireless positioning due to its high resolution capability in the time domain. Its usability to resolve multipath components makes it possible to obtain accurate location estimates without the need for complex estimation algorithms. This precise location estimation capability facilitates many applications such as medical monitoring, security, and asset tracking. This paper discusses the theoretical limits of TOA estimation and TOA-based location estimation for UWB systems. Due to the complexity of the optimal schemes, suboptimal but practical alternatives are emphasized. Performance limits for hybrid TOA/SS and TDOA/SS schemes are also considered.
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U2 - 10.1109/MSP.2005.1458289
DO - 10.1109/MSP.2005.1458289
M3 - Article
AN - SCOPUS:85032751286
VL - 22
SP - 70
EP - 84
JO - IEEE Signal Processing Magazine
JF - IEEE Signal Processing Magazine
SN - 1053-5888
IS - 4
ER -